U.S. Sen. Ted Cruz easily defeated U.S. Rep. Colin Allred on Tuesday, defying another spirited and well-funded effort to turn Texas blue and preserving his status as a leading conservative voice in American politics.

“The results tonight, this decisive victory, should shake the Democrat establishment to its core,” he said in a speech to supporters at his campaign watch party in downtown Houston.

The Associated Press called his victory after 10 p.m. as Cruz was leading by more than double digits.

Shortly after, Allred told his supporters at his election night party in Dallas that he had conceded to Cruz.