I think this was a different rally from the one in the movie, but read some of the details from a rally he did this at. He was outed, escaped in an ambulance and then came back in a different costume to interview the rally organizer about his music act:
Event organizers eventually realized that Cohen was trolling the rally and attempted to pull the plug on his equipment. Cohen’s security prevented them from doing so, however, allowing the comedian to continue unabashed for over eight minutes. After the audience was clued in on the prank, Cohen and his band exited the stage and escaped the grounds via a private ambulance positioned nearby.
But wait… apparently Cohen later returned, in a different disguise, to interview the event’s organizers about what went wrong.
Sacha Baron Cohen crashed a far-right rally in Olympia, Washington, pretending to be a racist country singer who led a sing-along about injecting former president Barack Obama and Dr. Anthony Fauci with the "Wuhan Flu".
consequenceofsound.net
