Gov. Kevin Stitt said Monday after talking with Trump and Vice President Mike Pence that nearly one million people have requested tickets to the event. Some Trump supporters have already started waiting in line outside the 19,000-seat BOK Center in downtown Tulsa.

“We’re excited we’re being recognized as one of the first states to safely and measurably reopen,” Stitt told reporters Monday. “I’m looking for a potential other venue that maybe we could move it outside. It’s still kind of in the works.”

Stitt, who plans to introduce Trump at Saturday’s rally, said he also asked Trump and Pence to join him on a tour of the city’s Greenwood District, once home to a prosperous African American community dubbed Black Wall Street that was burned to the ground during a racially motivated massacre in 1921 that left as many as 300 people dead.