Martha McSally's Worst Nightmare Is on the Launch Pad: Former Astronaut Mark Kelly Is Running Against Her for U.S. Senate

My next mission... #FullSpeedAhead #ForArizona pic.twitter.com/5E36z7aztH

— Mark Kelly (@ShuttleCDRKelly) February 12, 2019

This morning, retired astronaut and former Navy fighter pilot Mark Kelly announced via Twitter than he plans to challenge Republican Martha McSally, who was appointed to the U.S. Senate after losing last year's Senate race to Kyrsten Sinema.