Sen. John McCain (R-Ariz.) does not like hecklers. In fact, he told them to "shut up" Monday while campaigning for Republican Senate candidate Jeff...

PHOENIX -- About a year and a half ago, a firefighter named Danny Valenzuela decided to run for Phoenix City Council. He went to Grand Canyon Universi...

WASHINGTON -- Republican candidates for the Senate in conservative-leaning states generally outraised their Democratic opponents in the latest fundrai...

Rep. Jeff Flake (R-Ariz.), running for a U.S. Senate seat, released an ad earlier on Thursday that attacks Democratic opponent Richard Carmona for all...

By KEVIN FREKING, THE ASSOCIATED PRESS WASHINGTON — Arizona voters have seen Richard Carmona in combat fatigues, in a surgeon's mask and gown, wi...

Missouri Sen. Claire McCaskill posted a massive fundraising haul of $5.8 million for the third quarter of the year, further evidence of the political ...

The U.S. Senate race in Arizona is heating up, with Democrats increasingly optimistic that Richard Carmona can beat Rep. Jeff Flake (R-Ariz.). The lat...

You couldn't make up the impressive biography of Richard Carmona of Tucson, Ariz. Hollywood would never buy it. But Carmona is real -- and one reason why Republicans are losing what once looked like a good shot at retaking the U.S. Senate.

Partisan differences were put aside on Wednesday, when an Arizona Democratic Senate candidate treated the injury of a young Republican operative. L...

WASHINGTON — Richard Carmona arrived in Washington a political novice in 2002 and left four years later scarred and frustrated. He didn't go qui...

Since his first House campaign a dozen years ago, would-be Arizona Sen. Jeff Flake has worked diligently to cast himself as a conservative gadfly, wil...

WASHINGTON -- Don Bivens, a top Democratic challenger in Arizona's U.S. Senate race, announced Wednesday that he was ending his campaign because a com...

WASHINGTON — John McCain is returning to the Senate for another six years. The four-term Republican, his party's presidential candidate two year...

WASHINGTON — John McCain is returning to the Senate for another six years. The four-term Republican, his party's presidential candidate two years ag...

AP/Huffington Post - Sen. John McCain's Republican primary challenger has released a new ad using McCain's own voice admitting to lying in the past. ...

J.D. Hayworth, who is vying to unseat Sen. John McCain in Arizona's Republican Senate primary, is out with a new campaign ad accusing his rival of sta...

TUCSON, Ariz. — Sen. John McCain has squared off in a sometimes testy debate with a former Arizona congressman hoping to take his job. J.D. Hay...

Arizona Sen. John McCain's campaign is out with two new attack ads aiming to capitalize on recent buzz surrounding a 2007 infomercial starring Republi...

Sen. John McCain's (R-Ariz.) campaign tried again Wednesday to try to paint Republican opponent, former Rep. J.D. Hayworth, as an extremist, this time...

Follow the latest news and discussion about the 2010 Arizona Senate race below. Email TwitterLists2010+AZSen@gmail.com if you know someone who shoul...

AP/Huffington Post - Arizona Sen. John McCain launched new radio and television ads Thursday that blast his primary opponent for supporting congressio...

J.D. Hayworth is getting sick and tired of Senator John McCain (R-Ariz.) always reminding people of that time Radar magazine put him on that list of A...

With a recent Rasmussen poll finding Republican Senator John McCain possibly facing a tough primary race against challenger J.D. Hayworth, Arizona Democrats see a possible opportunity in the making.

A young candidate running a campaign against John McCain built largely on enthusiastic supporters and grassroots energy. Barack Obama. And, possibly,...

Produced by HuffPost's Citizen Reporting Team Could Senator John McCain be out of a job before the general election in November? According to a ne...