Ted CruzRafael (Ted) Edward CruzGrassley says disclosing Trump's tax records without authorization could violate law Supreme Court nominee gives no clues in GOP meeting Barrett to sit with McConnell and other GOP senators in back-to-back meetings MORE made the case that he’s the only GOP presidential candidate who can beat Donald TrumpDonald John TrumpFive takeaways from Trump-Biden debate clash The Memo: Debate or debacle? Democrats rip Trump for not condemning white supremacists, Proud Boys at debate MORE as Nevada caucus results rolled in late Tuesday showing Cruz narrowly trailing rival Marco RubioMarco Antonio RubioGOP online donor platform offering supporters 'Notorious A.C.B.' shirts Sunday shows preview: Lawmakers prepare for SCOTUS confirmation hearings before election GOP lawmakers distance themselves from Trump comments on transfer of power MORE.

Cruz argued that with the field being winnowed, there’s a clear path for him to take on the GOP front-runner and that his win in the Iowa caucuses proves he's a viable alternative to the real estate mogul.

“History teaches us that no one has ever won the nomination without winning one of the first three primaries. And there are only two people who have won one of the first three primaries,” Cruz said in a Las Vegas speech to supporters, referring to his victory in Iowa and Trump’s wins in New Hampshire and South Carolina. “And the undeniable reality that the first four states have shown is that the only campaign that has beaten Donald Trump and the only campaign that can beat Donald Trump, is this campaign,” Cruz continued.

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“You can choose between two Washington dealmakers or one proven consistent conservative,” Cruz added.

Cruz and Rubio were battling for second place after Trump sailed to victory in Nevada. With 17 percent of precincts reporting, Cruz trailed Rubio by about 3 points.

“They’re still counting the ballots, so we don’t know exact results, but I want to congratulate Donald Trump on a strong evening tonight,” Cruz said.

Cruz has had a rough couple of days as his rivals lobbed attacks calling into question his integrity. Trump has repeatedly called Cruz a liar and questioned his faith.

On the eve of the Nevada caucuses, Cruz fired communications director Rick Tyler after he promoted a false story that portrayed Rubio as dismissing the Bible.

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Tyler apologized to Rubio, but the Florida senator blasted Cruz and his campaign for a culture of “deceptive” tactics.

During Tuesday night’s speech, Cruz looked ahead to next week's Super Tuesday, when he’s pinning his hopes on a number of Southern states, including his home state of Texas.

“Tonight I’ll sleep in my bed for the first time in a month, and then it’ll be back to the campaign trail in Texas and all across Super Tuesday,” Cruz said.