 and only one day after Trump's former opponent, President Joe Biden, announced he's stepping away from his bid for reelection. For NPR News, I'm Nick Swartzell. This evening, Vance speaks in southwest Virginia. Secret Service Director Kimberly Cheadle goes before the House Oversight Committee today. She's expected to be pressed by lawmakers about security failures at an outdoor rally in Butler, Pennsylvania, where a gunman tried to assassinate former President Donald Trump.