LAS VEGAS (Reuters) - Republican Newt Gingrich vowed on Sunday to press ahead with his struggling presidential bid after a big loss in Nevada, saying he will focus on drawing a contrast with "timid" rival Mitt Romney.

BEMIDJI, Minn. (AP) -- Rick Santorum has lost four straight contests....

LANSING, Mich. (AP) -- The portrayal of a young Asian woman speaking broken English in a Super Bowl ad being run by U.S. Senate candidate Pete Hoekstra against Michigan incumbent Debbie Stabenow is bringing charges of racial insensitivity....

LAS VEGAS (Reuters) - What happens in Vegas, stays in Vegas. And Republican Newt Gingrich certainly will hope the disarray that marred his campaign in Nevada last week will not doom his White House bid as he heads toward a possible Super Tuesday last-stand next month.

WASHINGTON (Reuters) - President Barack Obama said on Sunday that Israel has not yet decided how to respond to concerns about Iran's nuclear program and said there was no evidence that Iran has the "intentions or capabilities" to wage attacks on U.S. soil.

WASHINGTON (AP) -- President Barack Obama says he deserves re-election, despite the nation's economic troubles....

DENVER (AP) -- Note to Republican presidential contenders: Colorado's political terrain is as rocky as its mountains....

LAS VEGAS (AP) -- Now it's on to Colorado, Minnesota and Maine....

ST. PAUL, Minn. (AP) -- Minnesota once took pride in progressive reform and political consensus....

LAS VEGAS (AP) -- Mitt Romney's big win in Nevada four days after his breakthrough victory in Florida spells big trouble for his remaining rivals. Simply put: Is there any way to stop Romney now?...

WASHINGTON (AP) -- A second term for President Barack Obama would allow him to expand his replacement of Republican-appointed majorities with Democratic ones on the nation's appeals courts, the final stop for almost all challenged federal court rulings....

WASHINGTON (Reuters) - It does not guarantee him re-election in November, but it is an advantage President Barack Obama is likely to carry into the fall: a broad base of supporters who have given him the symbolic vote of confidence with a donation of less than $200.

LAS VEGAS (AP) -- Angry Ron Paul supporters overtook a special caucus Saturday night for religious voters who honor the Sabbath, prompting long lines, frantic GOP officials and voter fraud complaints....

TOKYO (Reuters) - The United States and Japan have agreed to tweak a six-year-old agreement on Marines based on the southern island of Okinawa, allowing Washington to deploy forces to the Pacific island of Guam regardless of the debate over moving a disputed airbase.

LAS VEGAS (Reuters) - A defiant Newt Gingrich vowed on Saturday to continue in the 2012 Republican primary race and predicted that he could pull even with Mitt Romney in the delegate count within two months.

WASHINGTON (Reuters) - President Barack Obama on Saturday pressed lawmakers to pass his proposal to provide up to $10 billion in aid to struggling homeowners, saying a failure to address the housing crisis would put the rest of the economy at risk.

MUNICH (Reuters) - Secretary of State Hillary Clinton warned on Saturday that the risk of more bloodshed and civil war in Syria had increased after her attempt to get Russia to back a U.N. Security Council vote condemning President Bashar al-Assad had failed.

WASHINGTON (Reuters) - President Barack Obama on Saturday urged the U.N. Security Council to take a stand against what he called the "relentless brutality" of Syrian President Bashar al-Assad.

WASHINGTON (Reuters) - Missile defense, an issue that has poisoned U.S.-Russia relations, could be a "game-changer" that transforms ties if the two sides cooperate on a shared system, says a report by former top officials from both sides of the Atlantic.