Donald Trump, Rick Santorum and Sen. Ted Cruz (R-Texas) will be at Stephens Auditorium on Saturday.

These men, who may be possibly seeking a 2016 presidential nomination, will be headlining a summit organized by the Family Leader, a group that is opposed to gay marriage and abortion.

Other speakers include Gov. Terry Branstad, Sen. Chuck Grassley, Stephen Baldwin and several others.

The summit begins at 10 a.m. on Saturday and ends at 7 p.m., at Stephens Auditorium at Iowa State University. The summit is sponsored by ActRight, Alliance Defending Freedom, CitizenLink and Citizens United, Heritage Action For America and the National Organization for Marriage.

Tickets are available through Ticketmaster, and cost $61.40.