The Pentagon has launched an investigation into what officials describe as “serious allegations of misconduct” involving Sen. Mark Kelly.

The Pentagon opened a highly unusual investigation of Sen. Mark Kelly over a video in which the retired Navy captain urged troops to reject illegal orders. Kelly said he won't be bullied into silence.

Senator Mark Kelly, one of the Democratic lawmakers targeted by President Donald Trump for his role in a video advising military personnel to respect the constitution over the president’s orders, had some strong words for the president.

WASHINGTON — Arizona Sen. Mark Kelly, with bipartisan sponsorship, has introduced a bill to bolster America's space exploration and research capabilities.

Mark Kelly said he's worried about the safety of his family in the wake of Donald Trump's threatening posts against him and other Democratic lawmakers. The post Mark Kelly, Whose Wife Was Nearly Assassinated,