Arizona July 22, 2024 12:53 pm 5 things to know about Mark Kelly Here are five things to know about the former astronaut and Arizona senator. US & World Videos 0:38 Biden: The Secret Service ‘needs more help' 10:21 Law enforcement shares details of protective incident at Trump golf course 2:21 Trump safe after shooting at golf course, person in custody 3:05 Legal victory for city of San Diego and proponents of Measure C 22:56 Politically Speaking: San Diego congressman calls for federal state of emergency on Tijuana sewage crisis