John McCain holds a commanding lead in Texas just over two weeks ahead of the Texas GOP Primary scheduled for March 4, according to a new CNN Poll.

55% John McCain
32% Mike Huckabee
11% Ron Paul

Among Republicans, 55 percent of likely Texas GOP primary voters support McCain as their choice for nominee. Thirty-two percent back former Arkansas Gov. Mike Huckabee and 11 percent support home-state congressman and former Libertarian standard-bearer Ron Paul. The poll's sampling error for Republican respondents is 4 percentage points.

The CNN/Opinion Research Corp. poll was conducted by telephone from Friday through Sunday. Pollsters talked to 1,506 adults in Texas, including 553 likely Republican primary voters and 529 likely Democratic primary voters.

McCain is the overwhelming front-runner in the fight for the Republican presidential nomination and party leaders have rallied around the candidate in an attempt for party unity.

The poll was released on the same day the only living former Republican president -- George Herbert Walker Bush, the current president's father -- endorsed McCain at an event in Houston.