Ariz., a retired Naval officer, is suing the War Department, as well as War Secretary Pete Hegseth, over the agency's actions to demote him and cut his retirement pay for urging military service members to "refuse illegal orders" in a video message with other leading Democrats.

Sen. Mark Kelly, D-Ariz., a retired naval officer, is suing the War Department, as well as War Secretary Pete Hegseth, over the agency's actions to demote him and cut his retirement pay for urging mil...