Missouri Senate is a margin-of-error contest, poll shows
01:47Democrat Claire McCaskill and Republican Josh Hawley are locked in a margin-of-error contest in Missouri's Senate race, according to a new NBC News/Marist poll of the state.
Democrat Claire McCaskill and Republican Josh Hawley are locked in a margin-of-error contest in Missouri's Senate race, according to a new NBC News/Marist poll of the state.
