One day after footage was released of U.S. Sen. Josh Hawley, R-Mo., fleeing the Senate Chamber as rioters supporting former President Donald Trump overtook the the U.S. Capitol on Jan. 6, the senator vowed not to run from voters. Then his former opponent across the aisle vowed to spread his words. On Saturday afternoon, former Sen. Claire McCaskill shared a video first posted by the Democratic National Committee. “I am not backing down. I’m not going to apologize. I’m not going to cower. I’m not going to run from you,” Hawley said at the beginning of the video. The clip is from Hawley’s speech…