A group of GOP leaders held a hush-hush meeting at a Washington, DC, restaurant to discuss the possibility of having a brokered convention next year so that they could find an alternative to Donald Trump, according to a report.

Republican National Committee Chairman ­Reince Priebus held the meeting with establishment GOP honchos, such as Senate Majority Leader Mitch McConnell, the Washington Post reported.

They listened to other GOP bigwigs talk about how, if the billionaire New York developer scored a large number of delegates in the primaries, they could mount a floor fight and get the party to back some other candidate, the report said.

Those who attended the meeting “see a floor fight as a real possibility,” according to the Washington Post, and they talked about how a brokered convention would happen only if no candidate has enough delegates to win on the first ballot.

Priebus and McConnell said nothing during the meeting and did not signal support for any effort to oppose Trump, the 2016 GOP poll leader who has threatened to mount a third-party candidacy if he is not “treated fairly.”

Trump has drawn scorn from fellow Republicans because of his controversial comments, most recently his call to ban Muslims from entering America.

The opposition is growing so strong that Joe Lhota, the GOP’s 2013 candidate for New York City mayor, called on the Manhattan Republican Party to kick Trump out of the GOP.

New York County party chair Adele Malpass considered Lhota’s call but ultimately declined to boot Trump. “I will let the voters decide Mr. Trump’s political future,” she said, warning that ousting Trump would give him a reason to run as an independent.

Meanwhile, Hillary Clinton on Thursday took one of her strong­est shots yet at Trump, declaring, “I no long­er think he’s funny.”

“I think for weeks, you know, you and everybody else were just bringing folks to hysterical laughter and all of that,” Clinton said on NBC’s “Late Night with Seth Meyers.” “But now he has gone way over the line. And what he’s saying now is not only shameful and wrong, it’s dangerous.”