Amid roiling debates on national security, foreign policy and immigration, the Republican-led House turned its attention Tuesday to social issues, setting a vote on a measure that would prohibit abortions after 20 weeks of pregnancy.

Although the measure is expected to pass the GOP-controlled House, it has no chance of becoming law, with the Democratic-led Senate certain to ignore it and the White House threatening in scathing language to veto it.

The bill, called the "Pain-Capable Unborn Child Protection Act," would outlaw abortions after 20 weeks, unless the life of the mother is at risk. The legislation cites studies which indicate that a fetus feels pain starting at this gestational threshold; supporters of the bill say this medical research dictates that these fetuses should therefore not be aborted.

While this vote offers a chance for members from socially conservative districts to flex their political muscles, some moderate Republicans have grumbled about the leadership’s decision to hold a vote on a controversial measure with no chance of going beyond the House.

“I think a lot of people are shaking their heads and not understanding why we’re doing this,” said one GOP official, who added that votes on hot-button social issues don’t help the party maintain much-needed Republican seats in moderate districts.

Republican Rep. Charlie Dent of Pennsylvania bluntly told The New York Times that the vote is “a stupid idea.”

“The economy is on everybody’s minds. We’re seeing stagnant job numbers. Confidence in the institution, in government, is eroding,” said Dent, a moderate whose southeastern Pennsylvania district only narrowly voted for Romney last year after voting for President Barack Obama in 2008. “And now we’re going to have a debate on rape and abortion.”

The House effort has also suffered from messaging issues, with Democrats hammering at the all-male panel that initially approved the bill and at recent perceived gaffes from some of the party’s conservative firebrands.

“We’re taking a political vote, and we’re getting the political messaging wrong,” the official said.

House leaders added language to the legislation last week after bill sponsor Rep. Trent Franks, R-Ariz., stated that “the incidence of rape resulting in pregnancy are very low.” Democrats compared that assertion to one made by then-Senate candidate Todd Akin, who suggested last year that women who are victims of “legitimate rape” often experience a physical, biological reaction to the trauma, preventing pregnancy.

Under the changed bill, pregnancies that are the result of rape or incest -- and are reported to authorities -- are excluded from the ban.

Seeking to quell the controversy around his comments, Franks -- who was originally slated to fill the high-profile role of managing the bill on the House floor -- will be replaced by Republican Rep. Marsha Blackburn of Tennessee during the floor debate Tuesday.

The vote also comes in the wake of a murder conviction for Kermit Gosnell, an abortion provider found guilty of murder for performing illegal late-term abortions.

Responding to criticism Tuesday that the House should be focused on economic issues instead of the largely symbolic abortion vote, Republican House Speaker John Boehner pointed to the Gosnell trial as evidence that taking up the abortion ban is warranted.

“After this Kermit Gosnell trial and some of the horrific acts that were going on, the vast majority of the American people believe in the substance of this bill and so do I,” he said.

And Blackburn argued on the House floor that the bill would send the "clearest possible message to the American people that we do not support more Gosnell-like abortions."

Last year, the House considered a similar piece of legislation that achieved the same ban, but applied only to the District of Columbia and did not include the exception for rape or incest. That bill achieved a simple majority (220-154), but ultimately failed because it needed a two-thirds majority for passage.

Tuesday’s vote, expected in the early evening, will require only a simple majority.

Last week, the White House made clear that it would veto the legislation, calling it an “assault” on women’s rights and a direct violation of the Supreme Court’s rulings.

“Forty years ago, the Supreme Court affirmed a woman's constitutional right to privacy, including the right to choose,” the administration said in a statement. “This bill is a direct challenge to Roe v. Wade and shows contempt for women's health and rights, the role doctors play in their patients' health care decisions, and the Constitution.”

NBC’s Jessica Taylor and Frank Thorp contributed to this report.

This story was originally published on Tue Jun 18, 2013 2:15 PM EDT

As the 40^th anniversary of the Roe v. Wade Supreme Court decision takes place on Tuesday, a majority of Americans – for the first time – believe abortion should be legal in all or most cases, according to a new NBC News/Wall Street Journal poll.

What’s more, seven in 10 respondents oppose Roe v. Wade being overturned, which is the highest percentage on this question since 1989.

“These are profound changes,” says Republican pollster Bill McInturff, who conducted this survey with Democratic pollster Peter D. Hart and his colleagues.

Related: Poll shows public lowers expectations heading into Obama's 2nd term

McInturff adds that the abortion-related events and rhetoric over the past year – which included controversial remarks on abortion and rape by two Republican Senate candidates, as well as a highly charged debate over contraception – helped shaped these changing poll numbers.

“The dialogue we have had in the last year has contributed … to inform and shift attitudes.”

View the poll results here

The 1973 Roe v. Wade decision established a woman’s constitutional right to an abortion, at least in the first three months of pregnancy.

According to the poll, 54 percent of adults say that abortion should be legal either always or most of the time, while a combined 44 percent said it should be illegal – either with or without exceptions. 

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That’s the first time since this poll question was first asked in 2003 that a majority maintained that abortion should be legal. Previously (with just one exception in 2008), majorities said abortion should be illegal.

In addition, a whopping 70 percent of Americans oppose the Roe v. Wade decision being overturned, including 57 percent who feel strongly about this.

That’s up from the 58 percent who said the decision shouldn’t be overturned in 1989; the 60 percent who said this in 2002; and the 66 percent who said this in 2005.

By comparison, just 24 percent now want the Roe v. Wade decision overturned, including 21 percent who feel strongly about this position.

Much of this change, the NBC/WSJ pollsters say, is coming from African Americans, Latinos and women without college degrees -- all of whom increasingly oppose the Supreme Court decision being overturned.

The NBC/WSJ poll was conducted Jan. 12-15 of 1,000 adults (including 300 cellphone-only respondents), and it has a margin of error of plus-minus 3.1 percentage points. 

Related: 40 years after landmark decision, restrictions on abortion grow

CHESTER, VA -- Virginia Gov. Bob McDonnell and Louisiana Gov. Bobby Jindal came to Mitt Romney's defense today over remarks the Republican presidential nominee made Tuesday, saying he wouldn't seek new anti-abortion legislation as president.

"There's only one pro-life candidate running for president, and that's Governor Romney," Jindal told reporters. 

Tuesday, in an interview with the Des Moines Register's editorial board, Romney said, "There's no legislation with regards to abortion that I'm familiar with that would become part of my agenda." 

Jindal today went on to rebuff attacks from Democrats, including an Obama campaign conference call this morning pointing to Romney's past support for restrictions on access to abortion.

 "The reality is, its no surprise that President Obama would want to talk about anything but the economy," Jindal said. 

The remarks came after he and McDonnell visited a barbecue restaurant here in Chester, one of three stops today across a wide swath of eastern Virginia as the two men get out the vote for the Republican presidential ticket.

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McDonnell said that Romney was signaling that his presidential agenda "isn't focusing on social issues." 

"Having read those comments from Governor Romney," McDonnell said of the Register interview, "what he was saying is, his overwhelming priority is going to be creating jobs, getting the economy back on track."

Both McDonnell and Jindal are outspoken on social issues and are fervently anti-abortion -- though when asked today they would not say they were disturbed by Romney's remarks. 

Republicans are likely hoping a strong debate performance by vice presidential nominee Paul Ryan in Thursday's debate against Vice President Joe Biden will shift the conversation.

Speaking to supporters earlier, Jindal -- once a much-speculated about contender for veep himself -- said he didn't want raise expectations for Ryan, with whom he earlier served in Congress.

But Jindal spoke highly of Ryan's chances.  "I don't think its going to be a fair fight," he said.

Pointing to sections of the interview in which Romney cites his support for cutting funding to countries promoting abortion, McDonnell said the "no legislation" remarks are being taken out of context. 

"Governor Romney's pro-life.  Pro-life bills that get to his desk, there's no question in my mind he will sign." McDonnell said.  

"He's pro-life, Obama's pro-choice, and now let's talk about the economy."

DENVER-- A defiant Mitt Romney refused to concede he is running as an underdog in the crucial battleground states that define the presidential contest, and accused President Obama of distorting his positions and trying to "fool" the American people.

Brian Snyder / Reuters

Republican presidential candidate and former Massachusetts Governor Mitt Romney speaks at a campaign rally in Denver, Colorado September 23, 2012.

Asked if he was now running as the underdog after a brutal two-week stretch of the campaign that included press accounts of infighting within his campaign, a leaked tape of him making controversial remarks at a fundraiser, and a slew of polls placing him slightly, but consistently behind President Obama in nearly every battleground state, Romney brushed off the question.

"I don’t pay a lot of attention to the day-to-day polls. They change a great deal," Romney said. "I know in the coming six weeks they’re very unlikely to remain where they are today. I’ll either go up or I’ll go down. It’s unlikely that we’ll just stay the same."

Pressed as to why those same polls showed him trailing in the various states - including Colorado, where he'll campaign Sunday night and Monday - Romney blamed President Obama's campaign for what he called "inaccurate" attack ads, which he complained mischaracterized his position on issues ranging from the auto bailout to abortion.

"They've been very aggressive in their attacks both on a personal basis and on a policy basis," Romney said. "I think as time goes on, people will realize that those attacks are not accurate and we'll be able to have a choice which is based upon each other’s accurate views for the country."

Later asked if he could win the upcoming October 3rd debate against President Obama, Romney returned to this vein, choosing not to answer the question directly, but to say that at least after the debates he could stop the president from trying to "fool people" into believing untrue things about him and his policy positions.

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"I think the president will not be able to continue to mischaracterize my pathway, and so I’ll continue to describe mine, he will describe his, and people will make a choice. That’s the great thing about democracy. I’m not going to try to fool people into thinking he believes things he doesn’t. He’s trying to fool people into thinking that I think things that I don’t. And that ends at the debates," Romney said.

But Romney, who regularly complains about ads by the president's campaign that he says are false and should be taken down, has also had multiple ads by his own campaign rated false by independent fact checkers, including recent attacks on welfare reform, which remain on the air.

The former Massachusetts governor also addressed his languid public campaign schedule of late, which has focused largely on fundraising and debate prep, by again blaming the president for disregarding federal campaign matching funds in 2008 and again this presidential cycle, forcing him to do the same.

"He’s doing it again this time, so to be competitive it means a lot more fundraising than I think I would like," Romney said. "I’d far rather be spending my time out in the key swing states campaigning, door-to-door if necessary, but in rallies and various meetings, but fundraising is a part of politics when you’re opponent decides not to live by the federal spending limits."

Finally, as Romney landed in Denver, where in just 10 days he will face off with President Obama in the first of three presidential debates, Romney attempted to shift expectations of an outright victory toward something more modest.

"I can’t tell you winning and losing. I mean, he’s president of the United States, he’s a very effective speaker. I hope I’ll be able to describe my positions in a way that is accurate and the people will make a choice as to which path they want to choose," Romney said.

"I don't expect this to be a contest of who can say the cutest phrase, I think it's a contest of very different directions for the country," he added later.

ST. CHARLES, Mo. – One day after Rep. Todd Akin vowed to stay in the race for US Senate, dismissing calls from across the Republican party to step aside, Sen. Claire McCaskill welcomed Akin back to the campaign by bashing him for abandoning veterans during his years in Congress.

 Visiting two VFW halls near St. Louis on Wednesday, McCaskill, the Democrat Akin is hoping to unseat here in Missouri, went through a list of Akin votes that took more than two minutes to recite.

 Audiences were mostly male and senior citizen.  Survivors of combat in Vietnam – and at least one World War II veteran – looked on beneath baseball caps decorated with military insignia as she accused Akin of blocking bonuses for troops stationed in Iraq and Afghanistan and voting against health care benefits for reservists and national guard members.

 “So that’s kind of the list,” McCaskill said of Akin’s voting record.  “Now, I don’t have a list like that."

 The attack did not include any mention of the recent controversy embroiling Akin.

 Sunday, Akin told a television interviewer that women could biologically prevent pregnancies resulting from what he called “legitimate rape.” 

 The remarks set off a firestorm, but Wednesday McCaskill only alluded to them broadly.

 During a press conference outside a VFW home in nearby Overland, McCaskill brushed aside questions about Akin’s future.

 “The voters have spoken, and he’s the nominee,” McCaskill said.

 “We’re going to draw the contrasts that I think are necessary so that voters know that he’s outside the mainstream, he’s very extreme,” she added later.

 Tuesday, Akin let a deadline for withdrawing from the Senate race pass.

 He told NBC’s Matt Lauer during a Wednesday interview on the TODAY show that his nomination was a “decision made by the citizens of our state, not the party bosses.”

 McCaskill’s VFW visits were part of a so-called “Vets for Claire” listening tour that the campaign says was arranged prior to the Akin controversy.

 A VFW official in Overland asked reporters to hold McCaskill’s press conference outside the building, in order to keep the organization compliant with rules prohibiting political activity by 501(c)(3) charity groups.

Updated 6:12 p.m. - Rep. Todd Akin (R) did not step aside as the Republican Senate nominee in Missouri, allowing a key preliminary deadline to end his candidacy to come and go.

Akin, who's faced growing clamor from fellow Republicans to end his candidacy amid an uproar over his weekend comments about rape, said he believes it is important for him to press forward with his campaign against incumbent Democratic Sen. Claire McCaskill.

"I want to make one thing absolutely clear: we are going to continue with this race," Akin said on the radio show of Mike Huckabee, the former Arkansas governor and Senate candidate.

"I've had a chance now to run through a primary. And the party people said that when you run through a primary, we'll be with you."

Akin had until 5 p.m. CST today to resign his Senate nomination without facing any procedural difficulties. He could still withdraw by Sept. 25, though he would have to petition a court to remove his name from the ballot, and have to pay costs associated with reprinting the ballots.

National Republicans have undertaken efforts to force the six-term congressman from the race. The National Republican Senatorial Committee has canceled its advertising reservations, and a pro-Republican super PAC has said it no longer plans to invest in the campaign, either. Top Republican senators have also canceled a planned fundraiser for Akin on Sept. 19.

Akin said he'd seen an influx of small-dollar donations since the initial uproar emerged on Sunday, and he said he'd received supportive calls from other colleagues in Congress, though he did not say who.

More significantly, national Republicans have begun openly agitating for Akin's ouster. Missouri's past five Republican senators released a joint statement today saying "the right decision is to step aside."

Orlin Wagner / AP

Rep. Todd Akin, R-Mo., talks with reporters while attending the Governor's Ham Breakfast at the Missouri State Fair in Sedalia, Mo.

Akin's controversy stems from comments he made last weekend on "The Jaco Report" on KTVI FOX 2 News, on which he said "legitimate rape" rarely results in pregnancy in victims. Akin has since apologized, and said he was mistaken to assert that rape culdn't result in pregnancy. He released a television ad to that effect this morning.

Republicans had high hopes of beating McCaskill before Akin made his comments over the weekend. But the congressman's persistence in the race could jeopardize the GOP's chances in this key race, which provides one of their best opportunities to achieve the net gain of four seats Republicans need this fall to take control of the Senate in the next Congress.

FAIRFIELD, Calif. -- Rick Santorum delivered what was billed as a major foreign policy speech at One Jelly Belly Lane in his latest in a series of attempts to invoke images of conservative icon Ronald Reagan.

Speaking to a crowd gathered at Jelly Belly Candy Company here, the candy manufacturers who produced Reagan's beloved jelly beans, Santorum's policy address was part homage to the former president and part blazing critique of his chief rival for the GOP nomination, Mitt Romney.

A picture of Reagan's face made out of jelly beans hung outside on the room where the former Pennsylvania senator told supporters the spirit of the Great Communicator had been lost.  Santorum was not shy about citing Romney as an example of a politician who does not fit the Reagan mold.  Santorum said Romney's inconsistencies on issues like gay marriage and abortion rights.

"We as conservatives need to stand up and fight for a candidate that can win this general election, who stands solidly, firmly on the 3 legs of the stool that brought the Reagan coalition together," Santorum said, referring to Reagan's belief in free enterprise, strong national defense, and conservative social values.

But it is an ad in Wisconsin which Santorum says paints him as an abortion rights advocate that GOP hopeful seemed particularly bothered by.

"I find it sort of remarkable that Gov. Romney is out running ads in Wisconsin right now basically saying I'm not pro-life," Santorum said, following with a list of the anti-abortion rights legislation he help push in Congress.  "To suggest somehow or another that I am not pro-life, again, is a disingenuous game that is played by politicians who seek power instead of trying to be truthful to the American public," he said.

Santorum laid out a national security platform based in strengthening the U.S. relationship with its allies and holding other countries accountable, two things he criticized Obama for failing to have done.

"If you are a foe of the United States, and you do not respect the United States and our security interests, you will learn to fear the United States and your security interests," he said to applause.  "Of all of the failings of this president, perhaps the greatest is on national security.  And folks that’s saying something."

Visiting California meant a break from campaigning in Wisconsin, where polls showed Santorum struggling to keep pace with Romney.  And yesterday, more bad news as Sen. Marco Rubio (R-FL) gave his much anticipated endorsement to Romney.

"If an endorsement hurt me, I wouldn't be here," Santorum said while greeting voters after the event.

The candy company was Santorum's only campaign event in the Golden State, which holds its primary June 5.  He spent the earlier part of the day fundraising in the Los Angeles area.  And despite their late primary, the GOP hopeful seemed confident the state would be important this cycle.

"California doesn't get a chance very much to play in presidential politics, of late," he said.  "But you will in this presidential primary."

OSCEOLA, Iowa -- In what the Texas governor calls a  "transformation," Rick Perry on Tuesday said that he has reversed his acceptance of abortion in some severe circumstances, saying that he now opposes the procedure even in cases of rape and incest.

Perry said the change came after seeing the "Gift of Life" film produced by former Arkansas Gov. Mike Huckabee. He told an audience of Iowans at Clark Electric Co-op in Osceola that he was moved by the story of a woman who introduced the film during a screening earlier this month in Des Moines.

"She said, 'I am the product of rape.' And she said 'my life has worth,'" Perry said of his exchange with the woman. "It was a powerful moment."

The Texas governor made the statement in response to a question from Joshua Verwers, a pastor at Full Faith Christian Center in Chariton, who noted that Perry had recently signed a stringent Personhood USA pledge that urges signatories to oppose abortion "without exception and without compromise."

Candidates Rick Santorum, Michele Bachmann, Newt Gingrich and Ron Paul have also signed the pledge.

Verwers said after the event that he was initially skeptical of Perry's flip on the position but that the governor's answer was "too perfect" and "sincere" to have come from anywhere but Perry's own heart.

"I do believe it was a sincere answer and that he has converted his position and that he would support personhood," the pastor told reporters.

DES MOINES, Iowa – With only 20 days until the Iowa caucuses, four GOP candidates made their pitch to social conservatives tonight at the premiere of an anti-abortion documentary narrated by the former Arkansas Gov. Mike Huckabee.

Michele Bachmann, Newt Gingrich, Rick Perry, and Rick Santorum addressed the 1200 person crowd before the house lights dimmed for the “The Gift of Life” premiere.

“I do want you to take note,” Huckabee told the crowd. “There were four candidates who cleared their schedules, and made this a priority event.”

Former Pennsylvania Sen. Rick Santorum, trailing in Iowa polls, won the biggest applause from the crowd tonight – and aimed his remarks at his competitors.

“I have some problems with some of the folks who running for office these days when they say, ‘I believe life begins at conception.’  That’s like, I say, ‘I believe the sun rises.’” Santorum said, to laughs.

“Why would you say you believe something that’s a fact?” Santorum added. It seemed to be a reference, at least in part, to Gingrich, who spoke minutes earlier in favor of a congressional bill that would define personhood as beginning at conception – though Santorum said later tonight he was talking about a number of his opponents. "I know that there have been several candidates for president who have stated they believe life begins at conception – and as I said, it’s not a belief, its a fact," Santorum told NBC News.

During her remarks, Minnesota Congresswoman Michele Bachmann attacked the Obama administration for considering – before reversing course – making the “Plan B” morning-after pill available on pharmacy shelves, “where little girls could find it next to bubble gum and next to M&M’s."

"President Obama is so tied up in his reelection that even he knew that was one step too far,” Bachmann said. Governor Rick Perry touted his record defunding Planned Parenthood in Texas, where he said 12 clinics have closed as a result. He called the new film a tactic in the fight against abortion, saying, “imagine the difference you can make not in just one life, but in two.”

Attacks on Gingrich awaited people after the movie premiere.  A group billed as "Iowans for Life" paid for fliers on cars that read, "The bottom line: Newt Gingrich is a pro-life fraud."

But as Huckabee pointed out during his short remarks inside the theater: “I think it is significant that all four of the candidates who are present tonight have endorsed life. And that ought to be very important.”

Charlie Neibergall/AP

Republican presidential candidate Rep. Michele Bachmann, R-Minn., greets audience members Saturday after the Thanksgiving Family Forum sponsored by The Family Leader in Des Moines, Iowa.

By NBC's James Novogrod and Carrie Dann

Although the Family Leader Thanksgiving forum held on Saturday night had far less inter-candidate fireworks than a typical Turkey Day family reunion, Rep. Michele Bachmann launched an attack even before the candidates walked off stage.

The Bachmann campaign sent an email skewering the newly surging Newt Gingrich’s record on abortion.

“Former House Speaker Newt Gingrich has failed to uphold a consistently pro-life stance throughout his career in public life,” the email reads. Team Bachmann accuses Gingrich of being "open to watering down the Republican Party's commitment to the inalienable right to life."

The candidate told reporters that she only intends to draw a contrast with other candidates' "surprises."

"What we're trying to do is underscore again the fact that there are differences in the candidates and you won't find surprises with me," she said.

Asked after the forum to comment, Gingrich appeared incredulous.

"I have no idea what she's talking about," he said, later adding "I'm not going to comment randomly on emails I haven't read."

The attack from Bachmann is the second time this week that she has targeted Gingrich. She honed in on reports about his consulting for Freddie Mac earlier this week, telling voters she "wasn't shilling" for the mortgage giant before the financial crisis.