(CNN) Ted Cruz said Sunday that he's prepared to support any Republican in this year's presidential election -- even if the party nominates a candidate he believes would lose to Hillary Clinton..

Appearing on "State of the Union with Jake Tapper," the Texas senator once again insisted that he is the best alternative to Donald Trump, saying that 65% of GOP primary voters agree that the real estate mogul is not the best candidate to face Clinton.

"You know, we've seen now that there's only one candidate that has beaten Donald Trump and that can beat Donald Trump," said Cruz, who gave Trump his only loss of the season thus far in the Iowa caucuses.

Cruz is the favorite to win the Texas primary, one of several states voting this week on "Super Tuesday." Polls show that Trump is leading in most of the other states voting that day.

Cruz told Tapper he hopes "those 65% of Republicans that don't think Donald can beat Hillary will continue to unite behind our campaign."

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