CLEVELAND (AP) — Donald Trump’s campaign and party leaders seem poised to defeat Republican renegades trying to derail the billionaire’s presidential nomination at the GOP national convention.

But it’s unclear they’ll prevail before the dispute flares into a potentially angry and embarrassing floor fight next week.

On Thursday, the two sides are beginning what could be a two-day faceoff at meetings of the convention’s rules committee. That panel’s initial votes should demonstrate how firmly Trump and GOP Chairman Reince Priebus control the convention, which meets in full next week.

In play will be proposals by so-called “Dump Trump” forces to let delegates vote for anyone they want, not the candidate they were “bound” to support after primaries and caucuses.

On Wednesday, Priebus signaled that it’s time for the insurrectionists to rally behind Trump.