(CNN) Texas Sen. Ted Cruz warned Tuesday that his state could turn blue if conservatives don't turn out to vote.

Cruz, speaking to radio host Hugh Hewitt, was discussing the early vote totals ahead of Texas' March 6 primary, which showed Democrats held a 45,000-vote lead in the early vote in the state's 15 largest counties.

During the last two midterm cycles, 2014 and 2010, Democrats trailed Republicans by more than 120,000 early primary votes in those counties. The Democrats' early vote lead is a sign of enthusiasm among their base heading into the midterm elections, where Democrats are hoping to capitalize on President Donald Trump's unpopularity with their base to win majorities in the House and Senate.

"The Democrats are showing up in big, big numbers. We need to make sure we get conservatives showing up to keep Texas bright red," Cruz told Hewitt. "Look, I think this is a volatile election. I think it could go a lot of directions."

Cruz continued, "The extreme left, they're angry. They're filled with rage. They hate the President. And mark my words, we are going to see historic turnout from the extreme left in November, which means if conservatives stay home, we have the potential, we could lose both houses of Congress."

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