Some fans of Robert “Beto” O’Rourke apparently aren’t sure what he looks like.

The failed U.S. Senate candidate made fun of a fan who saw him at his Iowa City rally and asked if he was there to see the presidential candidate.

“To my friend Matt, who I met in the men’s room as we were washing hands, and he said, ‘Are you here to see Beto?’ And I said, ‘Yes, I am.’

“So thank you for being here,” O’Rourke told “Matt,” pointing him out.

“I was wearing the hat, you couldn’t tell,” he said, referring to an Iowa Hawkeyes ball cap.

The hilariously humiliating moment came as O’Rourke seems to be flagging in interest.

The Washington Examiner reports:

Beto O’Rourke saw firsthand what it’s like to be just another presidential candidate during a sleepy town hall event Sunday afternoon as the enthusiasm and star power he sought to generate hit ground truth in Iowa.

O’Rourke, 46, a former Texas congressman, started 30 minutes late, and the University of Iowa student union ballroom remained less than half filled as the candidate gave his pitch to fewer than 120 students, families, and retirees before taking questions. Many of those were not committed to O’Rourke.

A number of attendees remarked to the Washington Examiner that O’Rourke’s crowd was smaller than they anticipated, particularly in a city of 75,000 with a major university. The crowd was less than half the size of audiences drawn by O’Rourke’s rival Sen. Bernie Sanders at similar events in smaller towns.

The Examiner posted several photos the small crowd in a large room.