Democratic Sen. Mark Kelly on Tuesday called Defense Secretary Pete Hegseth's investigation into him a "bunch of bull****" ...

The secretary and Sen. Kelly jousted over the 'illegal orders' video that is part of a pending review by the Pentagon.

Sen. Mark Kelly talks about clashing with War Secretary Pete Hegseth on Venezuela and over Hegseth's investigation against ...

"He wants to perform. He doesn't want to answer questions about these strikes on boats in Venezuela," the Arizona Democratic ...

A lawyer for the Arizona Democrat warned the Defense Department that any legal action it may take “would be unconstitutional ...

Kelly investigation ‘escalated,’ Hegseth and Rubio to brief senators, Trump says Ukraine peace ‘closer than ever,’ AMERICOM ...

Sen. Mark Kelly (D-AZ) and War Secretary Pete Hegseth exchanged barbs behind closed doors Tuesday over the Pentagon’s ...

Sen. Mark Kelly (D-AZ), a retired Navy captain and former astronaut, hit back at Defense Secretary Pete Hegseth on Tuesday ...

Controversial Democratic lawmaker Mark Kelly of Arizona has vowed he is 'not going away' despite threats made against him.

In an interview, the Arizona senator says Trump “is not intimidating me, and he’s not going to”—though he’s less forthcoming ...

This investigation was called for by Defense Secretary Pete Hegseth, who accused Kelly and five other Democrats in the video ...