As we mentioned earlier, Edwards and Obama are in New Hampshire today. Clinton today picks up an endorsement today from New Jersey Gov. Jon Corzine (D) -- a significant thing for future fundraising -- and then heads to Iowa. Biden also campaigns in the Hawkeye State.

In an interview, Elizabeth Edwards said she wouldn't be interested in attending Cabinet meetings if she became First Lady, running counter to what Rudy Giuliani said last week about his wife Judith.  Edwards says the First Lady has a "great big megaphone and you get to talk about things you care about, and I hope I'd be busy doing that and mothering my adorable children as opposed to sitting in Cabinet meetings."

Over the weekend in Iowa, the Des Moines Register writes, "Obama promoted eliminating some of the income tax cuts enacted under President Bush, but resisted characterizing the move as a tax increase. He defended as a general principle the idea of reversing income tax cuts enacted during Bush's first term."

In an interview with the AP's Mike Glover, Obama said the war funding was assured no matter how dramatic the showdown between the White House and Congress gets. "'My expectation is that we will continue to try to ratchet up the pressure on the president to change course. I don't think that we will see a majority of the Senate vote to cut off funding at this stage… I think that nobody wants to play chicken with our troops on the ground.'"

Did you know Michelle Obama made her first official solo campaign stop over the weekend? She did it in Iowa.

Gallup is out with an analysis of Hillary Clinton's support and notes that there is a significant gender gap. No shock there. But what's fascinating is how big the split is among independents. From Gallup: "This gender gap is most evident among 'pure' independents who do not lean toward either party. Clinton's favorable rating among purely independent women is 21 points higher than among independent men. The majority of independent women have a favorable view of Clinton, aligning them with Democrats; most independent men have an unfavorable view of Clinton, aligning them with Republicans. The analysis presented in this report is based on 10,065 Gallup Poll interviews in which Clinton's favorable rating was measured, conducted between February 2005 and March 2007."

And Al Gore's "Inconvenient Truth" tour takes him to Phoenix today and the campus of Arizona State University.

After attending opening day at Yankee Stadium, Giuliani heads to a house party in New Hampshire. McCain, meanwhile, is in Iraq. Reuters says that the Arizona senator "toured a Baghdad market on Sunday and said afterwards the American people were not being told the 'good news' about the war in Iraq… 'I believe we have a new strategy that is making progress. That is not to say things are well everywhere in Iraq. Far from it, we have a long way to go,' he told journalists after spending a day touring Baghdad with a congressional delegation."

The AP reports that Giuliani "will officially enter the presidential race with a formal announcement sometime in April, his campaign said Sunday…The campaign said Giuliani will also change the status of his campaign with the Federal Election Commission on Monday from an exploratory committee to a full-fledged presidential committee, a move that amounts to nothing more than a name change.

Per Sunday's New York Times, Giuliani discussed his ties to Bernard Kerik after speaking to the Club for Growth: "'I think I should have done a better job of investigating him, vetting him, however you want to describe that,' Mr. Giuliani said... It's my responsibility, and I've learned from it,' he said, adding, 'I'll make sure that I do a better job of checking into people in the future.'"

The Palm Beach Post added: "While people 'have a right to question' Giuliani's judgment, the Republican front-runner said he hopes voters will look at his entire record of service rather than a snapshot. 'I've had a long (political) career ... That gives you great successes and' some failures, he said.

Judith Giuliani won't be getting an invite to join PETA anytime soon. Apparently she may have been involved with some surgical testing that involved dogs.

While not addressing immigration per se, Gingrich touched on one of the things that anti-immigration activists talk about all the time: English-only. In a speech to the National Federation of Republican Women over the weekend, Gingrich noted all the various languages government documents (including election ballots) are printed in: "Citizenship requires passing a test on American history in English. If that's true, then we do not have to create ballots in any language except English." Peter Zamora, co-chair of the Washington-based Hispanic Education Coalition, which supports bilingual education, said: "The tone of his comments were very hateful. Spanish is spoken by many individuals who do not live in the ghetto."

Former Wisconsin Gov. Tommy Thompson (R), who also served as Bush's HHS secretary, said yesterday that he's officially running for president, the AP writes. "'I am the reliable conservative. My record shows that. All that people have to do is look at my record, and I am one individual that they can count on,' Thompson said." On Iraq, moreover, he stated he "would have 'a completely different Iraq strategy' from the president's. Thompson said he would 'demand' that the Iraqi government vote as to whether it wanted the U.S. to remain in the country. If the answer were yes, 'it immediately gives a degree of legitimacy.' If the answer were no, 'We would get out, absolutely. It's a duly elected government.'"

Thompson is set to make his presidential announcement on Wednesday -- first from a high school in Milwaukee (in the aptly named Tommy Thompson Athletic Center), and then from Clive, IA.

By the way, Bob Novak is convinced that the other Thompson – Fred – is running. "I met Fred Thompson in 1974 as Howard Baker's 31-year-old minority counsel on the Watergate investigation. I considered him cool, careful and conservative. He still is, and that is how he would run for president, which appears in the offing."

And the Denver Post reports that Tom Tancredo "plans to announce today on an Iowa radio program that he is running for president, two sources close to the congressman said." More: "Tancredo's goal is to force top-tier Republican candidates Sen. John McCain of Arizona, former Massachusetts Gov. Mitt Romney and former New York Mayor Rudy Giuliani to talk about immigration. In particular, Tancredo will target McCain, co-sponsor of immigration legislation last year with a guest-worker program and path to legal status for illegal immigrants."

The Wall Street Journal analyzes if the Democrats-- so far -- are accomplishing the "new direction" in Congress it promised voters last year. "In the space of 100 days of Democratic control, the House has challenged President Bush over the Iraq war, sent dozens of bills to an uncertain fate in the Senate, imposed tougher ethics rules and started reshaping the federal budget… But few of the House-passed bills have become law, and signature issues such as raising the minimum wage and cutting student-loan rates are adrift. The Iraq war debate consumes time and energy, and if the year only produces Senate stalemate and White House veto fights, it will seem a very 'Old Direction' to independent voters who helped Democrats win control in the 2006 elections and put a priority on bipartisan results."

Meanwhile, the Washington Post delves into the various spats Bush has found himself in with congressional Democrats. Among the confrontations highlighted: unionization of airport security workers, loosening of presidential secrecy orders, closing of Guantanamo Bay, and the reinstatement of legal rights for terrorism suspects.

The drip-drip is apparently taking a toll on the White House. It wants the Senate Judiciary Committee to move up its hearing date for the embattled Alberto Gonzales. For now, the hearing is set for April 17; the Senate comes back April 10. Meanwhile, Senate GOP leader Mitch McConnell didn't offer Gonzales the most ringing of endorsements.