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 2:51 Doug Emhoff addresses donors in Menlo Park 2:31 Hundreds gather at Harris fundraiser 3:06 SF mayoral candidates address Latino community 2:33 Vice President Kamala Harris arrives for second Bay Area fundraiser 4:04 Where do the presidential candidates stand?