Arizona and Sonora signed a memorandum of understanding, agreeing to tackle shared environmental challenges at the border.

Ruben Gallego is on course to become Arizona's first Latino U.S. senator. Congress returns to work on Tuesday against the ...

Here are The Arizona Republic's top 10 playoff games to see this week ... But the Colts lost their last three Premier Region ...

A race for a county supervisor seat between two seasoned politicians appears likely to remain undecided until the bitter end ...

A review of the 2024 results show that Trump flipped or expanded his lead in several crucial counties. Arizona's most populous county Maricopa, which includes Phoenix, shifted decisively back to Trump ...

The Peoria Police Department and U.S. Marshals announced they arrested 21-year-old Alexander Lee Smith in Gilbert on Monday.

Spearheaded by Carlos Francisco Parra, an assistant professor at the University of Arizona and a native of Nogales, “Beyond ...

Lucy’s discovery transformed our understanding of human origins. Don Johanson, who unearthed the Australopithecus afarensis ...

PHOENIX (AP) — Republican U.S. Rep. Eli Crane won reelection in a Republican-leaning congressional district covering vast ...

Robert Brutinel joined the U.S. Marines because he liked their uniforms. But his life and legacy would become a story of a hero, both overseas and at home.