Republican members of Arizona's congressional delegation are again trying to split up the federal appeals court whose nine-state territory includes Arizona.

Arizona’s two U.S. senators quickly emerged as the leading Republican opposition to President Donald Trump’s order suspending the admission of all refugees for 120 days and blocking the entry of citizens from seven Muslim-majority countries.

Saying he fears harm to Arizonans, Gov. Doug Ducey today urged Congress to not to rush repeal of the Affordable Care Act.

Political experts said Arizona should not worry about retribution from President-elect Donald Trump for the well-publicized squabbling between him and Arizona Sens. Jeff Flake and John McCain.

President-elect Donald Trump is the business titan who has spoken appreciatively of Russian President Vladimir Putin. Republican Sen. John McCain is the tough-talking national security hawk who warns that Russian interference in the U.S. election threatens to "destroy democracy."

A leading Republican voice on national security matters has declared as "unacceptable" any attempt by the incoming Trump administration to reset relations with Russia.

The toughest challenger of John McCain’s 30-year U.S. Senate career didn’t turn out to be nearly as tough as Arizona Democrats had hoped, as the former Republican presidential nominee won his sixth term in office.

A Phoenix woman dropped as a political fundraiser for U.S. Sen. John McCain's re-election campaign seven months ago after being arrested on suspicion of drug possession has pleaded guilty to one count of possession of drug paraphernalia.

Sen. John McCain says Americans should be proud of their election systems and must respect the decisions made by the majority of voters.

U.S. Rep. Ann Kirkpatrick, D-Ariz., over the past couple of weeks has ratcheted up the pressure on U.S. Sen. McCain over his tepid but long-running support of Trump’s candidacy.