U.S. Sen. Claire McCaskill joins Politically Speaking to talk about her quest for a third term in one of the nation’s most closely watched Senate contests.

The Missouri Democrat was first elected to the Senate in 2006. Before that, McCaskill served as Missouri’s auditor, Jackson County prosecutor and a member of the Missouri House of Representatives.

This time around, McCaskill is squaring off against Missouri Attorney General Josh Hawley, a Republican who is emphasizing his conservative bonafides — and his endorsements from President Donald Trump and Vice President Mike Pence.