Kelly's comments come after the Defense Department said it would investigate the retired Navy captain after he participated in a video calling on troops to refuse illegal orders.

WASHINGTON — The Pentagon’s investigation of Sen. Mark Kelly over a video that urges American troops to defy “illegal orders” has raised a slew of questions, and some criticism, from legal experts.

Sen. Mark Kelly, D-Ariz., told NPR "it just doesn't make any sense" for him to face a military court-martial after he and other Democratic lawmakers released a video reminding active-duty troops that ...