GOP Presidenital Primary

BROOKFIELD, Wis. (AP) — Well-traveled routes that serve as Wisconsin's vital arteries also provide a window into the competing hopes for Mitt Romney and Rick Santorum. Romney can roll up a solid win in Tuesday's presidential primary with a strong showing along the state's east-west Interstate 94, which bisects Milwaukee's GOP-rich western suburbs...

Former Sen. Rick Santorum's star has brightened considerably, at least for now, after caucus wins in Minnesota and Colorado and a first place finish in the non-binding Missouri Republican presidential primary. The sweep raised fresh questions about front-runner Mitt Romney's appeal among the ardent conservatives at the core of the party's political base...

TAMPA, Fla. (AP) — Mitt Romney is starting primary day in Florida leading in statewide polls and already looking to the next round of nomination contests in the Republican presidential race. Romney is widely expected to do well against chief rival Newt Gingrich in Tuesday's voting...

WASHINGTON (AP) — Many of Mitt Romney's presidential challengers are having trouble fulfilling a fundamental requirement of running for public office: getting on the ballot. Rick Santorum, Newt Gingrich, Rick Perry and Jon Huntsman have all failed to qualify for the ballot in at least one upcoming GOP primary...

MUSCATINE, Iowa (AP) — Republican presidential contenders Mitt Romney and Rick Perry on Wednesday assailed Ron Paul for saying the U.S. has no business bombing Iran to keep it from acquiring a nuclear weapon, drawing a sharp contrast with their rising rival as he returned to Iowa days before the lead-off caucuses...