In a poll conducted last week, 48 percent said they’d likely vote for Fischer, 45 percent picked Kerrey and 7 percent remained undecided.
Fischer has tried to portray Kerrey as a carpetbagger because he returned to the state from New York to run for the Senate seat.
Republicans are trying to pick up at least four seats from Democrats in order to gain control of the Senate (if President Obama wins reelection), and Nebraska was viewed as one of the most likely to flip.
Wiese Research Associates of Omaha conducted the poll for the paper from Oct. 23-25. It had a margin of error of plus or minus 3.5 percentage points.