GULFPORT, Miss. – The Republican party will be in trouble come November if Mitt Romney attempts to inspire voters using math, Rick Santorum argued to a roomful of Mississippi supporters on Sunday.

"You have Gov. Romney now saying, 'Oh this race is over that mathematically it can't work," Santorum said.  "When we have our nominee going out there and trying to sell the American public to vote for him because of mathematics, we are in very, very tough shape. This isn't about math. This is about vision, it's about leadership."

Santorum, a former Pennsylvania senator, will need to win 61 percent of the remaining delegates to win the nomination, according to calculations by the NBC News political unit. That’s a tall order, especially with former House Speaker Newt Gingrich remaining in the race and cutting into Santorum's support.

But the Santorum campaign has dismissed the delegate argument, and instead focuses on the upcoming states and the possibility of non-binding delegates coming their way.

As Santorum took his campaign to the South, he continued to stress how his grassroots campaign has been the key to his success, contrasting his style with that of his rivals. He said it is the aggressive schedule of town halls held in Iowa while he was at the bottom of the polls that led to his rise. "You keep going, because every meeting I've had like this, people walk out and they take a sign, they take the card and they say 'I'll make some phone calls,'" Santorum said.

He added, "We haven't run a campaign carpet-bombing people with calls and ads."

Santorum targeted Romney and President Barack Obama over one of the most heavily-used talking points used during this Republican primary – the teleprompter.  "I always believed that when you run for president of the United States, it should be illegal to read off a teleprompter. Because all you're doing is reading someone else's words to people. You know, when you're running for president, people should know not what someone's writing for you after they've had pollsters and speech writers test it."

Santorum also acknowledged some of his own mistakes that have came from not using a teleprompter. "You know we get fired up sometimes and say some things that I wish I had a mulligan on if you will, but if you’re not scripted that’s going to happen," he said.

Cuyahoga Falls, OH – Making his final pitch to Ohio voters Monday, Rick Santorum called on supporters to vote for a candidate of honor – all the while calling Mitt Romney dishonest for defending the health care legislation he signed as governor of Massachusetts.

"We now find multiple videos and op-eds where (Romney) advocated for... a government-mandated health insurance benefit, something he's been denying throughout the course of this campaign," Santorum told a packed crowd in Westerville, OH. "It's one thing to be for it, it’s another to not tell the truth to the people of this country."

The remarks came shortly after Santorum held a conference call with reporters in which he argued Mitt Romney’s record would undermine his ability to challenge President Barack Obama about health care during the general election.

Romney says the Massachusetts health care law was right for Massachusetts but that he would not have advocated for it as a model for the country. Still, the Santorum campaign continues to point reporters to clips of Romney television appearances as proof that the former governor believed the legislation could work beyond the state borders.

"Now we know that Gov. Romney, for the course of this campaign has told the people of this country something that wasn't true,” Santorum said. “Now it's one thing … to have bad policy. It's another thing to mislead the American public."

Demonstrating its organizational strength, the Romney campaign responded to the Santorum conference call even before it started.

Spokeswoman Andrea Saul blasted out a response: "Over the last several years, Governor Romney has said many times, in many different formats, that his health care reform plan was the right model for Massachusetts, and that it should not be used as a one-size-fits-all national health insurance plan. Governor Romney is a federalist and has always said that states should be free to come up with their own health care reforms.”

Recent polls show the two neck-and-neck in the Buckeye State heading into Super Tuesday.

KNOXVILLE, Tenn. – Newt Gingrich has called for an end to “children’s hour” when it comes to the country’s security and says that Beltway policy makers are missing the point when it comes to Syria.
 
“We don't need to mess around tactically having a debate over Syria,” Gingrich said while campaigning in Tennessee. “We need a fundamental conversation about the entire natural of our role in that entire region and we need rethink what we're doing across the whole region.”
 
Gingrich, the former house speaker, has for months been an outspoken critic of United States policy regarding the Middle East. Recently he has criticized the Obama Administration for apologizing to Afghans when Qurans were burned outside a military post in Afghanistan.
 
“Arguing about Afghanistan today and Syria tomorrow and Iran next day – this is nonsense,” Gingrich told a crowded ballroom inside the Hilton Knoxville Airport Hotel here. “We have been in a period where, for over 10 years, we have attempted to figure out a strategy for fundamental change in the region and I want to suggest to you that it has not worked.”
 
Gingrich also touched on another topic he speaks of often – Iran – but took an even sharper tone than normal.
 
“We should indicate calmly and decisively that any act to close the Straight of Hormuz will be considered an act of war and we will eliminate the government of Iran,” Gingrich said. “None of this limited rules of engagement, take-two-lawyers-into-combat-with-you to make sure you do it right.  You mess with the Strait of Hormuz, you won't be a government anymore.  But – unless they're utterly insane, that would probably stop them.”
 
But with just one day before the all-important Super Tuesday contests, Gingrich shot back during his afternoon speeches at comments his rival, Mitt Romney, made Sunday.
 
“Gov. Romney yesterday said I was pandering” on gas prices, the Speaker told the Kingsport/East Tennessee Republican Women’s Club in Kingsport. “Well, let me say up front, of course nobody knows you'd be at $2.50 [per gallon of gas], but there's this thing called setting goals.”

“It's not called pandering, it's called leadership,” Gingrich said about his proposal to lower gas prices.

The Speaker, who needs a big win on Super Tuesday in his home state of Georgia, also added he is confident going into the state's primary tomorrow.
 
“Looks now like in Georgia we will carry the state by four or five times the margin that Romney had in Michigan,” he said. “So that feels pretty good.”