Planes were unable to take off or land at Phoenix Sky Harbor Airport on Thursday, delaying some flights. Here's what caused the ground stop.

The 5.5-mile extension will operate between downtown Phoenix along Central and 1st avenues and introduce a two-line rail ...

Critics say Trump's new border policies deny migrants right to seek asylum, but the Border Patrol says it can now focus on national security threats.

A live-updating map of novel coronavirus cases by zip code, courtesy of ESRI/JHU. Click on an area or use the search tool to enter a zip code. Use the + and - buttons to zoom in and out on the ...