Sen. Ted Cruz Rafael (Ted) Edward CruzThe Hill's Morning Report - Sponsored by Facebook - Washington on edge amid SCOTUS vacancy Murkowski: Supreme Court nominee should not be taken up before election Battle lines drawn on precedent in Supreme Court fight MORE (R-Texas) on Tuesday declined to say if he plans to endorse Republican presidential nominee Donald Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE, but he made his focus clear.

"My focus is on defeating Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE and helping preserve a Senate Republican majority," the Texas senator told CNN reporter Manu Raju.

Cruz won't say if he'll endorse Trump but says: "My focus is on defeating Hillary Clinton and helping preserve a Senate Republican majority" — Manu Raju (@mkraju) September 20, 2016

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During the Republican National Convention, Cruz pointedly did not endorse the GOP nominee. Instead, he urged people to vote their conscious.

"If you love your country and you love your children as much as I know that you do, stand and speak, and vote your conscience," Cruz said during his speech at the RNC.

"Vote for candidates up and down the ticket who you trust to defend our freedom and to be faithful to the Constitution."

The Texas senator on Tuesday also brushed off comments by Republican National Committee Chairman Reince Priebus that the party could penalize former GOP candidates who don't back Trump.

"The last thing we need to be worrying about is bickering between Republicans," Cruz told the CNN reporter.