WASHINGTON -- Rick Santorum was projected to sweep two southern states in Republican primaries, all but burying Newt Gingrich's chance for the nomination and complicating Mitt Romney's status as frontrunner. Santorum, the former Pennsylvania senator...

WASHINGTON -- Mitt Romney won Republican primary contests in Arizona and Michigan, maintaining his frontrunner status for now. In Michigan, the state his father governed and where he was raised, Romney, the former Massachusetts governor, beat back a challenge...

WASHINGTON -- Three of the four Republican presidential candidates said the United States should make a more explicit threat of military action against Iran. Mitt Romney, Rick Santorum and Newt Gingrich agreed in the CNN debate on Wednesday in Arizona...

WASHINGTON -- Rick Santorum won three contests in the race for the Republican nod for the presidency. The former Pennsylvania senator's victories Tuesday in Missouri, Minnesota and Colorado were not determinative because each of those states will decide...

Participants in a special Saturday night Republican caucus in Nevada were required to sign a legal declaration stating they could not attend their regular caucus due to their "religious belief." Mitt Romney, the former Massachusetts governor and the front-runner...

Republican presidential hopeful Ron Paul reportedly signed off on racially charged newsletters in the 1990s, despite denying his involvement. Paul said recently that he was not involved in the writing of and did not read the "Ron Paul Survival Report"...

WASHINGTON—Newt Gingrich won the Republican primary in South Carolina by a wide margin, throwing open the race for the party's presidential candidacy. Gingrich, the former U.S. House of Representatives speaker, defeated Mitt Romney, long believed to...

WASHINGTON—Newt Gingrich won the South Carolina primary by wide margin, throwing open the race for the GOP presidential candidacy. Gingrich, the former U.S. House of Representatives speaker, bested Mitt Romney, long believed to be the frontrunner, 40.4...

WASHINGTON—Rick Perry reportedly is dropping his bid to become the Republican presidential nominee. CNN and The New York Times reported Thursday that the Texas governor will announce later in the day his decision to bow out; a news conference reportedly...

The Iowa Republican caucus is shaping up as a close three-way race between Mitt Romney, Rick Santorum and Ron Paul. Each of the candidates were within dozens of votes of each other as votes were counted Tuesday night, splitting about 75 percent of the...

Ron Paul's unlikely rise in the Republican presidential race has Jewish conservatives on edge. The Texas congressman had been regarded as a fringe figure whose views, especially on foreign policy-including his opposition to the U.S.-Israel alliance-put...