Ted Cruz: Warren could beat Trump in 2020

Sen. Ted CruzRafael (Ted) Edward CruzGOP lays debate trap for 2020 Democrats O'Rourke on Senate bid backer Beyoncé: I will have to 'earn her support' for 2020 Hickenlooper, Bennet bring deep ties to 2020 debate stage MORE (R-Texas) is already worried about the GOP's chances of keeping the White House in 2020.

In a panel discussion Tuesday, Cruz warned that Democrats, led by Sen. Elizabeth WarrenElizabeth Ann WarrenTrump says he'll watch Democratic debate while en route to Japan 'because I have to' The Hill's Morning Report - Democratic debates: Miami nice or spice? 5 things to watch in the Democratic debates MORE (D-Mass.), could retake the White House in 2020 if President Trump and Republicans fail to overcome party divides that threaten their ability to govern.

"If we screw all this up, you better believe the American people could elect President Elizabeth Warren," Cruz warned, according to the Texas Tribune.

But, he added, "if we deliver on all this, it doesn't matter who they nominate — we win."

The Texas senator accused members of Trump's administration of secretly working for the left by undermining the GOP agenda with infighting. 

"Those voices in the White House that are trying to get the White House to unload on conservatives, to unload on the Freedom Caucus, are doing the bidding of the left, of [House Democratic Leader] Nancy Pelosi [Calif.] and [Senate Democratic Leader] Chuck SchumerCharles (Chuck) Ellis SchumerMcConnell-backed Super PAC says nominating Roy Moore would be 'gift wrapping' seat to Dems McConnell vows to 'vigorously' oppose Moore's Senate bid Pelosi: Trump delay on Harriet Tubman is 'an insult to the hopes of millions' MORE [N.Y.]," he said. 

He also told assembled media that friction between the Trump White House and Congress is "profoundly damaging our prospects of success."

Cruz told reporters that he thinks Warren is the Democrats' most likely choice to challenge Trump in 2020, saying he thinks it is "likely" that she decides to run.