Two high-profile Iowa Republicans — Senate President Amy Sinclair and House Majority Leader Matt Windschitl — are endorsing Florida Gov. Ron DeSantis’ potential presidential bid as he returns to the state this weekend ahead of a likely presidential run.

DeSantis is scheduled to hold a pair of events Saturday in Sioux Center and Cedar Rapids — the same day former President Donald Trump is set to appear at a rally in Des Moines.

More:Trump, DeSantis hold events Saturday in Iowa. What you need to know to go

Trump and DeSantis are on a potential collision course in the first-in-the-nation caucus state, which could have a more important role than ever in helping determine the course of the Republican presidential primary as Trump opponents hope to coalesce around a viable alternative.