Democratic Sen. Jon Tester and Republican Rep. Denny Rehberg are tied in the Montana Senate race at 48 percent, according to a poll released Tuesday by Rasmussen.
The survey of 500 likely voters was conducted Oct. 14, and has a 4.5 percent margin of error. In the previous Rasmussen poll from mid-August, Rehberg was ahead 47 percent to 43 percent.
The PollTracker Average shows Tester slightly ahead, 47 percent to 46.3 percent.