Blunt leads the Democratic Secretary of State by one point, 47-46, with Libertarian candidate Jonathan Dine trailing at 2 percent.
The Republican senator led by two points, 46-44, when Monmouth University polled the U.S. Senate race in Missouri at the beginning of the month.
The Monmouth University poll surveyed 405 likely Missouri voters via live telephone interview from Oct. 28-31, and has a margin of error of plus or minus 4.9 percent.
Correction: This post originally identified Blunt as a congressman instead of a senator. We regret the error.
TPM's PollTracker Average for the U.S. Senate election in Missouri shows Blunt leading Kander, 46.5 to 44.1.