Casino magnate who gave millions to super PAC supporting Gingrich will meet with presumptive nominee in Las Vegas
GOP candidate's wife talks about dealing with multiple sclerosis on the campaign trail, including an episode the day before Super Tuesday
By next week, a super PAC for Romney will spend $937,000 on ads in Illinois and $451,000 on ads in Louisiana
After a lackluster showing in Super Tuesday, a Gingrich staffer in South Carolina says it's time for his campaign to end
Analysis: Super Tuesday results suggest the GOP race is very much alive amid a lack of enthusiasm among Republican voters
Analysis: Super Tuesday story for GOP front-runner is a story of disaster narrowly averted
Brian Montopoli talks about where Romney and Santorum go from here and discusses why Gingrich might not leave the race anytime soon
CBS News projects Romney to win Ohio, Vt., Va., Mass., Alaska, and Idaho; Santorum wins Tenn., Okla. and N.D.
Analysis: Romney may be the frontrunner, but Rick Santorum's refusal to go quietly means the race is likely to drag on for months
CBS News projects Romney to win crucial state of Ohio, plus Vt., Va., Mass. and Idaho; Santorum wins Tenn., Okla. and N.D.; Gingrich takes Georgia
CBS News estimates Romney is now leading in Ohio; Romney and Santorum each set to take 3 contests tonight as Gingrich wins Georgia
Rick Santorum brags about multiple Super Tuesday wins while slamming Romney as not truthful and wrong on the issues
After winning Georgia but losing in other Southern states, Gingrich's candidacy may only serve as a thorn in Rick Santorum's side
CBS News projects Gingrich to win Ga., Romney to win Vt., Va. and Mass.; Santorum to win Tenn., Okla.; Close race in Ohio
As votes begin to trickle in on Super Tuesday, CBS News projects Newt Gingrich will win Georgia and Romney leads in Virginia, Vermont
Gas prices were an important factor for a significant majority of voters in primary states today, according to CBS News early exit polling, especially in the South
As voters head to polls and caucuses for Super Tuesday, here's a snapshot of how the campaign is playing out on Twitter
Rick Santorum is offering Super Tuesday voters a tough, gritty underdog who won't back down. Are they buying it?
At White House press conference, Obama offered a few words of advice for the Republican front-runner on Super Tuesday
Democrats explain why they are participating in DailyKos' "Operation Hilarity" by voting for Rick Santorum to simply prolong the GOP primary