PHOENIX — Arizona Rep. Jeff Flake defeated wealthy businessman Wil Cardon on Tuesday in an unexpectedly feisty Republican U.S. Senate primary ra...

By JERI CLAUSING, ASSOCIATED PRESS PHOENIX — Arizona voters headed to the polls Tuesday to settle an unexpectedly feisty Republican U.S. Senate p...

A Republican Senate candidate in Arizona told party activists late last week that he is in favor of repealing the direct election of U.S. senators. ...

WASHINGTON -- They have deep pockets and aren't afraid to dig into them. Seemingly out of nowhere, a trio of wealthy political neophytes has roiled R...

A Republican candidate for Arizona's open Senate seat hinted that he opposes the pre-existing condition portion of the Affordable Care Act during a fo...

One of Congress' leading opponents of earmarks has a history of writing letters to federal agencies highlighting projects in his district seeking fede...

National Democrats are attacking a Republican U.S. Senate candidate in Arizona over what they say are misleading statements he made on an Arizona publ...

A Republican candidate for Arizona's open U.S. Senate seat is touting his background as a lobbyist for Namibian companies with ties to Iran in a Faceb...

Rep. Jeff Flake's evolution on Iran since declaring a Senate bid continued on Tuesday after the Senate voted for tougher sanctions. The Arizona Rep...

-- 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 Cardon, a Republican candidate for U.S. Senate in Arizona, recently revealed that he remains skeptical about President Obama's eligibility for off...

Mitt Romney is supporting both candidates involved in a Republican Senate primary campaign currently being waged in Arizona. The former Massachuset...