The latest Republican presidential primary poll of Texas from University of Texas/Texas Tribune:

Santorum would get the votes of 45 percent of the respondents if the election were held today, according to the survey. The other three candidates in the GOP race — former U.S. House Speaker Newt Gingrich, former Massachusetts Gov. Mitt Romney and U.S. Rep. Ron Paul of Texas — are clustered well behind. Gingrich got 18 percent, Romney received 16 percent and Paul garnered 14 percent.

The presidential race in Texas remains highly volatile, and the numbers could change significantly between now and the state's primaries. They were originally scheduled for March 6 — early voting would have started this week — but have been delayed by redistricting litigation. Texas still doesn't have all of its congressional and legislative maps in place, and May 29 appears to be the earliest possible primary date.

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