Former Rep. Cori Bush, D-Mo., is campaigning to return to Congress alongside a self-described Maoist activist and political organizer whose online videos and social media rhetoric has included urging leftists not to disavow Hamas or Hezbollah, has included calls to "unmake" America, applauded burning the American flag and endorsed political violence. The activist, Christopher Winston, has built an online presence across numerous platforms under the pseudonym "BlackRedGuard," posting and appearing in videos about "Maoist organizing in DSA," attacking leftists who say they do not support "Hezbollah/Hamas" and using rhetoric that appeared to condone political violence. In one video reviewed by...