FORT PIERCE, Fla. — A man charged with trying to assassinate then-former President Donald Trump while he played golf last year in South Florida stood before a group of potential jurors in a Florida courtroom on Monday and said he was “sorry for bringing you all in here.”

Ryan Routh, wearing a gray sports coat, red tie with white stripes and khaki slacks, is representing himself in the trial, which began with jury selection Monday in the federal courthouse in Fort Pierce, Florida.

“Thank you for being here,” Routh told the first group of 60 jurors who were brought into the courtroom after U.S. District Judge Aileen Cannon introduced prosecutors and Routh to the panel.

Cannon signed off on Routh’s request to represent himself but said court- appointed attorneys needed to remain as standby counsel.

During a hearing earlier to go over questions that would be asked of jurors, Routh was partially shackled. But he did not appear to be restrained when the first of three batches of 60 potential jurors were brought into the courtroom on Monday afternoon.

Cannon dismissed the questions Routh wanted to ask jurors as irrelevant earlier Monday. They included asking jurors about their views on the Gaza Strip, the talk of the U.S. acquiring Greenland and what they would do if they were driving and saw a turtle in the road.

The judge approved most of the other questions for jurors submitted by prosecutors.