Sen. Ted Cruz's lead over Democratic challenger Rep. Beto O’Rourke is widening, according to one survey.

The results of a poll released Wednesday show the Republican incumbent is up by 5 percentage points.

According to a new Ipsos online poll conducted along with Reuters and the University of Virginia, almost half of likely voters — 49 percent — said they plan to back Cruz, while 44 percent responded they would cast their ballot for O’Rourke, the Texas Tribune reports.

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The poll’s results indicate that the margin between Cruz and O’Rourke is widening. Cruz was only ahead of O’Rourke by 2 percentage points in the same Ipsos poll from September.

Three percent of respondents of the most recent poll claimed they wouldn’t vote for either Cruz of O’Rourke and would support a different candidate, and 1 percent said they wouldn’t vote at all.

The poll was conducted from Oct. 12-18 with a sample size of 2,000 Texans over the age of 18. The poll does not have a margin of error, but rather has a “credibility interval” of plus or minus 3.1 percentage points.

The midterm elections are less than two weeks away on Nov. 6.