ST LOUIS, MO – NOVEMBER 05: Supporters of Senator Claire McCaskill (D-MO) with signs that say vote wait for the senator to arrive for a campaign stop at The Royale bar on November 5, 2018 in St. Louis, Missouri. McCaskill is in a tight race for votes with her Republican challenger Josh Hawley for tomorrow’s midterm election. (Photo by Scott Olson/Getty Images)