An adviser to President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE reportedly told GOP donors on Saturday that it was a possibility that Sen. Ted Cruz Rafael (Ted) Edward CruzTrump argues full Supreme Court needed to settle potential election disputes Press: Notorious RBG vs Notorious GOP The Hill's Morning Report - Sponsored by Facebook - Washington on edge amid SCOTUS vacancy MORE (R-Texas) could lose his Senate race to Democratic challenger Rep. Beto O'Rourke Beto O'RourkeJimmy Carter says his son smoked pot with Willie Nelson on White House roof O'Rourke endorses Kennedy for Senate: 'A champion for the values we're most proud of' 2020 Democrats do convention Zoom call MORE (Texas), citing likability.

White House budget chief Mick Mulvaney Mick MulvaneyMick Mulvaney to start hedge fund Fauci says positive White House task force reports don't always match what he hears on the ground Bottom line MORE told Republicans at a closed-door meeting that it was a "possibility" that Cruz could lose his Senate race while Republicans such as Florida Gov. Rick Scott could win, The New York Times reports.

“There’s a very real possibility we will win a race for Senate in Florida and lose a race in Texas for Senate, OK?” Mulvaney said, according to audio obtained by the Times.

“I don’t think it’s likely, but it’s a possibility. How likable is a candidate? That still counts.”

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Mulvaney reportedly made the comments during an event alongside Republican National Committee Chairwoman Ronna Romney McDaniel.

However, Mulvaney attempted to assuage fears of widespread Democratic victories in the November midterm elections, insisting that no "blue wave" was coming to elect Democrats to office.

Democrats are hoping for a net gain of at least 23 seats to take back a majority in the House, while Republicans are defending their slim 51-49 seat majority in the Senate.

“They want you to think there’s a blue wave when there’s not,” Mulvaney said Saturday, while acknowledging that House Republicans face a challenging map with a number of GOP-held seats considered toss-ups.

“I don’t know how many seats we’ve got this year, but there’s got to be, how many?” Mulvaney said. “Twenty? Thirty? Forty?”

His remarks are some of the most candid on Cruz's race from the White House, which threw its support behind Cruz's reelection bid last month amid polls showing a tightening race.

Cruz, a one-term Republican senator who first took office in 2013, currently leads his opponent by single digits, according to several recent polls.

Spokespeople for Mulvaney and McDaniel did not immediately respond to the Times's request for comment.