RNC official: Cruz will run in 2020 even if Trump wins
© Greg Nash, Getty Images

A top Republican National Committee official believes Sen. Ted CruzRafael (Ted) Edward CruzSenate Republicans face tough decision on replacing Ginsburg Cruz: Trump should nominate a Supreme Court justice next week Renewed focus on Trump's Supreme Court list after Ginsburg's death MORE (R-Texas) would run for president in 2020 even if Donald TrumpDonald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE is the sitting president.

“If Trump wins, you better bet your ass Cruz is going to primary him,” an unnamed RNC official told Yahoo News.

ADVERTISEMENT

Cruz faced off with Trump in a bitter GOP presidential primary this year, eventually ending his campaign after losing the Indiana primary in May.

The Texas senator has not yet endorsed Trump but has accepted a speaking slot for the Republican National Convention's Wednesday night session.

Hours before Cruz was scheduled to speak, he held a thank-you event for his delegates and supporters in Cleveland. At the event, any mention of Trump drew loud boos from his supporters.

Attendees also chanted "2020" during the event.

"I don't know what the future is going to hold, I don't know what will happen, but what I do know is my unshakable faith in the men and women here," Cruz told his supporters. 
 
"Every one of us has an obligation to follow our conscience, to speak the truth and truth is unchanging, to defend liberty. There's a lot of talk about unity — I want to see unity and the way to see unity is to unite around shared principles, to unite around liberty, and for us to empower the grassroots."