Just when it appeared that the movement to dump Donald Trump as the GOP presidential candidate was defeated, it looks like it has come roaring back.

And this time, it may have more momentum than ever.

As many as 1,000 delegates to the Republican National Convention may have interest in a new push to ditch Trump and allow delegates to choose another candidate.

The new movement is calling itself “Free the Delegates,” and it’s rallying like-minded Republicans to prepare for a fight.

But critics argue that it is a petulant coup that would set aside the will of millions of voters who backed Trump.

According to insiders, the Free the Delegates movement plans to organize thousands of delegates in a plot to depose Trump with a convention rules change.

“Roughly 30 delegates from 15 states participated in a conference call Thursday night,” Yahoo! reported Monday. “Since then, however, [their] campaign appears to have picked up steam. A second conference call on Sunday night attracted an alleged 1,000 participants.”

According to The Washington Post, “The group is led by delegates seeking to block Trump at the GOP convention next month in Cleveland by changing party rules so that they can vote however they want — instead of in line with the results of state caucuses and primaries. It is quickly emerging as the most organized effort to stop Trump and coincides with his declining poll numbers.”

The Free the Delegates movement is also reportedly raising money for staff and a legal defense fund.

This establishment threat to Trump’s nomination has grown increasingly credible. The Associated Press has reported that more and more Republicans in Congress are saying they will not attend the party convention and are not endorsing his candidacy.

Trump wondered aloud Saturday who his opponents would pick as a replacement, a problem that has plagued the “Never Trump” movement for months.

“Who are they going to pick? I beat everybody. But I don’t mean beat — I beat the hell out of them,” he said.

Tell us what you think! Would you support another GOP candidate if Trump was dropped at the Republican National Convention?

The Associated Press contributed to this article.