The legal showdown between California Gov. Gavin Newsom and President Donald Trump takes center stage Thursday afternoon in a federal courtroom in San Francisco.

Democrats are scrambling to shift the fight away from immigration, instead highlighting Trump’s use of executive powers.

A Russian-born scientist and Harvard University researcher charged with smuggling frog embryos into the United States faces a detention hearing in Massachusetts. Thirty-year-old Kseniia Petrova ...

The deployment of troops to Los Angeles raises questions about what Trump can and can't do with the military on U.S. soil, and whether he's crossing the line.

The Trump administration’s response to L.A. immigration protests faces a hearing Thursday in San Francisco after California officials filed suit.