The race for Congressional representative in the 13th District has tightened, according to a poll released Monday.

Democrat Betsy Dirksen Londrigan has pulled within one percentage point of incumbent Republican Rodney Davis, according to the internal poll of likely voters by Democratic pollster GBA Strategies. The split is 49 percent Davis, 48 percent Londrigan.

The poll of 500 likely voters has a margin of error of plus or minus 4.4 percent. Londrigan was trailing Davis by five points in a GBS poll conducted a month ago.