The American Civil Liberties Union has filed a federal lawsuit challenging an Arizona law prohibiting state contractors from supporting boycotts against Israel.

Only four women have served on the Arizona Supreme Court. But Justice Ann Scott Timmer found the one silver lining to the state’s gross underrepresentation at its highest court: “The good news is I’m in the top five of all time.”

Donald Trump remains more popular in Arizona than the nation as a whole. But pollster Mike Noble said it doesn't look like that will help the Republican Party hang on to the Senate seat being vacated by Jeff Flake.

Voters are electing two governors, some big-city mayors and one member of Congress in an election dominated by local and state races.

Democratic senators criticized a National Park Service plan to impose steep increases in entrance fees at 17 of its most popular parks, including the Grand Canyon, Yosemite, Yellowstone and Zion, calling the proposed rates “arbitrary and unjustifiable.”

Arizona Republican Sen. Jeff Flake’s re-election race is becoming a case study in the GOP’s convulsions among the establishment, a furious base and angry donors.

A federal judge has upheld the validity of former Sheriff Joe Arpaio's presidential pardon despite claims from critics that letting his clemency stand would encourage officials to disobey future court orders.

The last-gasp Republican drive to tear down President Barack Obama's health care law essentially died Monday as Maine Sen. Susan Collins joined a small but decisive cluster of GOP senators in opposing the push.

The Arizona Department of Environmental Quality expects reductions in grant funding from the federal Environmental Protection Agency, but a lack of specifics have impeded planning.

House Democrats Isela Blanc and Cesar Chavez want “Dreamers” to keep making their voices heard and telling their stories as Congress wrestles with how to address Deferred Action for Childhood Arrivals.