The poll's findings are some of the tightest since the race began.
Broken down by party affiliation, the poll found that 74 percent of Republicans support McConnell while 12 percent said they supported Grimes. Among Democrats 67 percent support Grimes while 23 percent support McConnell. Ten percent of Democrats said they were undecided. Similarly 13 percent of Republicans said they were undecided.
Among Independents, McConnell gets 49 percent of those surveyed while Grimes gets 38 percent, the poll found. Thirteen percent said they were undecided.
See TPM's Polltracker below: