Kelly may have set a quarterly fundraising record for senators not facing reelection during an off-year period, and he spread ...

The Democratic senator criticized the language used by Trump's border czar to describe the tense situation in Minneapolis.

The Arizona senator and retired Navy captain has done a lot of things very few others have. He’s gone to space four times, ...

CNN’s Erin Burnett talks to Democratic Senator Mark Kelly about the Trump White House mocking the arrest of Don Lemon.

Kelly told colleagues that “two Americans are dead at the hands of their government,” citing recent fatal encounters of Renee Good and Alex Pretti. He accused the administration of lying, of ...

The agency says Kelly doesn’t have the same right to free speech as civilians.

The continuing fallout from the "illegal orders" video has kept a spotlight on Sen. Mark Kelly, D-Arizona. Questions about ...

Senator Mark Kelly is suing Defense Secretary Pete Hegseth, arguing the Pentagon unlawfully retaliated against his political speech by threatening his military retirement rank and pension.

The defense secretary is going after the Arizona Democrat's Navy pension for telling troops they can refuse illegal orders.

Hegseth's effort to punish a US senator "places other retirees who have spoken up potentially in jeopardy," a military law expert said.

Over 40 retired generals, admirals and other former senior military officers signed an amicus brief on Tuesday in support of ...

While the Pentagon chief is considering demoting Arizona U.S. Sen. Mark Kelly, the senator is weighing a run in the 2028 ...