Lamb, 53, is so far the biggest name in what has become a crowded GOP primary in Arizona's 5th Congressional District.

Arizona Attorney General Kris Mayes and Adelita Grijalva have filed a lawsuit against the U.S. House of Representatives ...

The Republican speaker of the U.S. House of Representatives is thumbing his nose at the Constitution by failing to seat a ...

Grijalva easily won a special election to fill the post previously held by her father, late Democrat Raúl Grijalva. House ...

Arizona’s attorney general has sued the US House of Representatives over Republican Speaker Mike Johnson’s refusal to seat an ...

Arizona Attorney General Kris Mayes filed a lawsuit to force House Speaker Mike Johnson to swear in Democrat Adelita Grijalva ...

Arizona Attorney General Kris Mayes previously gave Speaker Mike Johnson an ultimatum: Swear in Adelita Grijalva or she'd ...

Rep.-elect Adelita Grijalva's constituents have been without representation in the House for more than seven months.

Halfway to the midterms, the Democratic registration slide suggests victories will hinge on winning over bigger slices of GOP and independent voters.

PHOENIX — Republican legislative leaders are entitled to challenge the heart of a voter-approved measure designed to shine a light on “dark money’’ in Arizona politics, the state Supreme Court ruled.

Celebratory chants of “Si se puede!” broke out Tuesday night at Democrat Adelita Grijalva's Election Night party as she defeated rival Republican Daniel Butierez in the race for an open seat in ...