The fight over Arizona’s share of the Colorado River could soon move from the negotiating table to the courtroom. After years ...

In Arizona, a fight against a deadly fungus is under threat from Trump’s health policies The 79-year-old physician is sitting on a chair in a side office at a health clinic in Phoenix, Arizona, long ...

Arizona became the first state to file criminal charges against Kalshi on Tuesday, accusing the prediction market company of operating an illegal gambling business within its borders, a significant ...

La Paz County, Arizona, is one of the drier places in a pretty dry state. With just a scant few inches of rain a year, a shrinking supply of water from the Colorado River, and a climate that keeps ...

PHOENIX—A fight in Arizona over a half-cent sales tax that funded much of the highway system is creating a rift between some Republicans and the business community and threatening to impede the ...