Democrat Kyrsten Sinema holds a narrow lead over Republican Vernon Parker in Arizona’s 9th Congressional District, according to a poll commissioned by Sinema supporters.

But after testing a slew of negative messages against both candidates, Sinema’s lead widened to double digits.

Arizona lawman Joe Arpaio is gearing up for what he expects will be the toughest of his five re-election campaigns.

Just three weeks after the Obama administration started accepting applications from young illegal immigrants seeking to avoid deportation and get a work permit, the government already has approved some of the roughly 72,000 applications the government has received.

In the first publicly released poll of the U.S. Senate race since Jeff Flake steamrolled his way through the GOP primary, Democratic nominee Richard Carmona is running in a virtual dead heat with the six-term congressman and is outperforming President Barack Obama in Arizona.

With a third of Arizona's voters declared independents, the race for Arizona's open U.S. Senate seat is shaping up to be a contest over former Surgeon General Richard Carmona's true political credentials.

President Barack Obama’s reelection campaign and the Democratic National Committee are coordinating and deploying thousands of lawyers to help voters deal with an array of recent voting law changes, according to national and state campaign officials.

Trailed by her husband, Mikel, who carried a pink guitar case bearing the message “Tell the Right They’re WRONG,” Beth Weisser of Kingman arrived Sunday to serve as a delegate to the Democratic National Convention.

An Arizona woman is scheduled to speak at the Democratic National Convention in North Carolina about the impact of health care reform on her family.

Democratic U.S. Senate nominee Richard Carmona kicked off the first day of the general election campaign by announcing the endorsement of members of iconic Republican Sen. Barry Goldwater’s family.

As Arizona celebrates the Pentagon’s decision to base three F-35 fighter squadrons at Luke Air Force Base, U.S. Sen. John McCain warned Thursday that potential defense spending cuts could cost thousands of jobs and $3 billion to the state’s economy.