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 touted Republicans' strength heading into the midterm elections late Saturday night in a series of tweets hinting that November's elections could lead to "interesting" results.

It was unclear to which races Trump was specifically referring in the tweets, but the president claimed that several contests the GOP "were not even thinking about winning" were now "very close."

"Republicans are doing really well with the Senate Midterms. Races that we were not even thinking about winning are now very close, or even leading," he wrote.

ADVERTISEMENT

"Election night will be very interesting indeed!"

Republicans are doing really well with the Senate Midterms. Races that we were not even thinking about winning are now very close, or even leading. Election night will be very interesting indeed! — Donald J. Trump (@realDonaldTrump) September 8, 2018

In a second tweet, the president mocked Democrats for harsh rhetoric lobbed against him in recent months.

"The Dems have tried every trick in the playbook-call me everything under the sun. But if I’m all of those terrible things, how come I beat them so badly, 306-223?" Trump tweeted, incorrectly referencing his actual electoral college vote score of 304-227.

"Maybe they’re just not very good!" he added. "The fact is they are going CRAZY only because they know they can’t beat me in 2020!"

The Dems have tried every trick in the playbook-call me everything under the sun. But if I’m all of those terrible things, how come I beat them so badly, 306-223? Maybe they’re just not very good! The fact is they are going CRAZY only because they know they can’t beat me in 2020! — Donald J. Trump (@realDonaldTrump) September 8, 2018

His remarks come hours after 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 a closed-door meeting of Republicans that the party stands to "possibly" pick up a Senate seat from Sen. Bill Nelson Clarence (Bill) William NelsonDemocrats sound alarm on possible election chaos Trump, facing trouble in Florida, goes all in NASA names DC headquarters after agency's first Black female engineer Mary W. Jackson MORE (D) of Florida, while Texas 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) also faces the possibility of losing his seat.

“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 New York Times.

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

Democrats are hoping to make up a gap of two seats in the Senate, but face an unfavorable midterm map in the upper chamber as several vulnerable Democrats are up for reelection.

The party also hopes to make up a gap of 23 seats to regain control of the House, where Democrats currently have a single-digit lead over the GOP, according to recent polling data.