A poll conducted by the group Rasmussen Reports shows Senator Mitch McConnell leading Democratic challenger Alison Lundergan Grimes by 8 percentage points.
The telephone survey of 1,000 likely Kentucky voters showed 52 percent supporting McConnell, while 44 percent said they would vote for Secretary of State Grimes.
Two percent said they preferred another candidate in the race, and three percent said they were undecided.
See the entire Rasmussen Reports poll findings here.
The latest poll shows McConnell receiving overwhelming support from Kentucky Republicans, with 83 percent saying they will vote for the incumbent. At the same time, McConnell is backed by 24 percent of those who identified as Democrats.
Grimes received the support of 73 percent of Democrats in the poll, with 16 percent of Republicans backing her.
The Rasmussen Reports poll has a margin of error of plus-or-minus three percentage points.