Newt Gingrich vows to stay in race
Candidate says "tag team" approach to beating Mitt Romney will work
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Candidate says "tag team" approach to beating Mitt Romney will work
Lawmakers introduce resolution to combat Joseph Kony, aiming to build on momentum created by viral video
At fundraiser, Biden says Obama "would've been a one-term president" if bin Laden mission had been unsuccessful
Basketball fan-in-chief taking British PM to game in Ohio, an election swing state; GOP pans trip
Incident in Afghanistan not a reason to change troop drawdown plans, Defense Secretary says
Super PAC backing Santorum looks ahead to next big southern contest
British prime minister is heading to the U.S. for a 3-day visit focused on current and looming foreign policy challenges
Defense Secretary said that despite recent setbacks, there's no change in plans to complete troop withdrawal by end of 2014
President directs Pentagon to "spare no effort" in a full investigation of killings in Afghanistan
In today's Southern primaries, Mitt Romney is aiming to solidify his standing as the unbeatable frontrunner
In wake of killing of 16 Afghan civilians, Obama says it is important for U.S. to leave nation in a "responsible way"
On primary day, states once considered in bag for Santorum now too-close-to-call, thanks to likely split of conservative vote
Candidate says rivals have spent more time, money ahead of Tuesday's primaries in Mississippi and Alabama
Says he's only candidate "who has any experience as commander in chief;" Spokeswoman later says he meant "to be" commander-in-chief
Candidate scoffs at memo saying rival could prevail at brokered convention