Congressman Paul Gosar’s campaign has stepped up its attack on his political rival, state Sen. Ron Gould, lambasting him for support he’s getting from Club for Growth.

The field of candidates in Arizona's 1st Congressional District race is narrowing.

U.S. Rep. Paul Gosar is stockpiling cash for an early voting blitz in his 4th Congressional District primary race against fellow Republican Ron Gould.

In the race to represent Arizona’s 1st Congressional District, former Democratic Rep. Ann Kirkpatrick and Republican Jonathan Paton boasted their best, and somewhat comparable, fundraising quarters.

In a strongly-worded letter to U.S. Immigration and Customs Enforcement, Arizona’s Republican congressmen characterized the Obama administration’s decision to sever immigration enforcement agreements with local police agencies a “declaration of war against Arizona.”

The website Politwoops launched this week as a way to catch politicians with their pants down, by cataloguing and posting deleted Twitter tweets of congressmen, the president and presidential hopefuls.

A poll released today by Ron Gould’s congressional campaign suggests a tight race between the state senator and U.S. Congressman Paul Gosar.

The two are vying for the Republican nomination in newly drawn 4th Congressional District.

The fight against border drug trafficking must address reducing demand, federal and Arizona law enforcement officials told a congressional panel in Phoenix.

Paul Babeu is dropping out of the race for Arizona's 4th Congressional District and will instead run for re-election as Pinal County sheriff.

House Speaker Andy Tobin on Monday announced that he will forgo a run for Arizona’s new 4th Congressional District.