Santorum's Campaign Gaining Momentum: Rick Santorum's presidential campaign was thought to be all but over after the Florida primary. So over, in fact, that there was speculation he would drop out of the race. But soldiering on through tough times in the long primary season could pay dividends on this primary day. According to the latest polls, Santorum has a very good chance of winning the Republican presidential nomination contests in Minnesota and Missouri (though with no delegates at stake in this particular contest, it would be a largely symbolic victory) and he is also expected to do well in the Colorado caucuses.

But Will Victories By Santorum Today Really Mean Anything?: Today's primary awards more delegates than on any other day combined, but The Fix's Chris Cilliza argues that victories by Santorum might not mot matter all that much, primarily because nothing is at stake in Missouri, and because Missouri and Minnesota both border the only state Santorum has won so far - Iowa - meaning that victories in either state will not serve as evidence of a broader, nationwide appeal for Santorum's candidacy. For his part, Romney has lowered expectations ahead of today's results. As Cilliiza pointed out, "The Romney folks aren’t worried about Santorum turning the race on its head — the stakes aren’t that high — but the fact that he could do anything to again call into question Romney’s impending victory is reason to tread cautiously."

Romney Falters In Poll While Paul Gains Support: A new Reuters/Ipsos poll released Tuesday shows that support for Mitt Romney's campaign has fallen below 30 percent, and that only 29 percent support his presidential candidacy - not good news for a candidate who's just had two consecutive primary victories. Meanwhile, support for Ron Paul's candidacy has grown by 5 percent. The Texas congressman is now running a solid second in the GOP race. Newt Gingrich finished third in the poll, but his numbers have slipped since the poll was last conducted. Rick Santorum was last in the poll, but support for his candidacy has grown by 5 percent over the past month.

Chuck Norris Endorses Gingrich: Newt Gingrich may not have gotten the endorsement of Donald Trump, but this week a different celebrity lent support to his faltering campaign. In endorsing Gingrich, "Norris compared Gingrich to Benjamin Franklin, King David and “'others like them,'” KSL-TV reported. Norris previously endorsed Mike Huckabee in 2008.

Hoekstra Super Bowl Ad Causes Controversy: An ad by Michigan Republican Senate candidate Pete Hoekstra that aired during Sunday's Super Bowl has come under fire by both Democrats and Republicans. The political commercial in question features a young Asian woman riding a bike through rice paddies speaking in broken English about China taking away American jobs. The ad has been called everything from "really, really dumb," to "incredibly racist." In case you haven't seen it yet, here it is: