Members of Missouri's legislative black caucus on Thursday elected state Rep. Steven Roberts, D-St. Louis, to chair the group — but Roberts' ascension drew criticism from one of his colleagues who two years ago accused Roberts of raping her. Rep. Cora Faith Walker, D-Ferguson, announced Thursday on Facebook that she was leaving the caucus. "I have resigned from the Missouri Legislative Black Caucus," Walker wrote. "I stand in my truth and am incredibly grateful to my colleagues who stand with survivors."