Missouri Democratic incumbent Sen. Claire McCaskill, left, and her Republican challenger, Josh Hawley, squared off Thursday in a debate in St. Louis.
Missouri Democratic incumbent Sen. Claire McCaskill, left, and her Republican challenger, Josh Hawley, squared off Thursday in a debate in St. Louis. Jeff Roberson AP file photo
Missouri Democratic incumbent Sen. Claire McCaskill, left, and her Republican challenger, Josh Hawley, squared off Thursday in a debate in St. Louis. Jeff Roberson AP file photo