WASHINGTON (AP) -- Mitt Romney's remark that he's not worried about the very poor, the latest gaffe in a campaign rich with blunders, joins a long list of wait-let-me-explain episodes in presidential election history....

LAS VEGAS (AP) -- Nevada Republicans have finally finished counting the votes in their Saturday presidential caucuses....

WASHINGTON (AP) -- You wouldn't know it from the Republicans, but these are boom times for American energy....

WASHINGTON (AP) -- President Barack Obama says the United States is working in "lockstep" with Israel to solve the brewing crisis over Iran's disputed nuclear program....

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

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?...

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

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

LAS VEGAS (AP) -- Newt Gingrich is wooing NASCAR voters....

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

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

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....

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....

LAS VEGAS (AP) -- For now at least, Mitt Romney's presidential campaign seems to mostly be going according to plan. A commanding Nevada victory Saturday night underscored as much....

WASHINGTON (AP) -- Mitt Romney rode overwhelming backing from Mormons and his best performance yet among conservatives to his emphatic victory Saturday in Nevada's Republican presidential contest, according to preliminary results of a poll of voters entering the caucuses....

LAS VEGAS (AP) -- The Republican party official in charge of counting Nevada caucus ballots in Las Vegas says the process is expected to take all night....

WASHINGTON (AP) -- Some notable moments from Saturday's Nevada presidential caucuses:...

MONTROSE, Colo. (AP) -- Rick Santorum said Saturday he wants to "endanger" rival Newt Gingrich while presidential rival Ron Paul claimed to have "reason to be optimistic" heading into Tuesday's contests as both Republican hopefuls peered ahead past the Nevada caucuses that handed both defeat....

LAS VEGAS (AP) -- Former Massachusetts Gov. Mitt Romney has won Nevada's Republican presidential caucuses. Former House Speaker Newt Gingrich and Texas Rep. Ron Paul remain in a tight race for second, with former Pennsylvania Sen. Rick Santorum finishing last....