Ryan Wesley Routh, the man charged with attempting to assassinate former President Donald Trump during the 2024 campaign, has chosen to represent himself as his federal trial opened this week, a decision a veteran legal expert said could undermine his defense.

The decision came as jury selection began Monday in U.S. District Court before Judge Aileen Cannon, who cautioned both sides to keep proceedings efficient. Routh has pleaded not guilty to federal charges that include attempting to assassinate a major presidential candidate and assaulting a federal officer. Authorities allege he was armed with an AK-style rifle when Secret Service agents intercepted him near Trump’s golf course in West Palm Beach in September 2024.

Cully Simson, a former prosecutor, defense attorney and judge, told Fox News Digital that while the Constitution guarantees the right to represent oneself, doing so in a serious federal criminal case is "almost always a mistake." Simson said self-representation creates unusual courtroom dynamics in which judges and prosecutors may feel compelled to temper their conduct to protect the integrity of the proceedings and the defendant’s rights.

"It really makes no sense for somebody to defend themselves, especially in a serious case," Simson said. He added that experienced defense lawyers challenge the prosecution at every turn, force the government to prove each element of an offense and lay the groundwork for potential appeals—strategies that can be absent when a defendant acts as his own counsel.

Prosecutors say Secret Service agents stopped Routh after discovering he was armed near the course. Routh faces several weeks of trial, and opening statements were tentatively scheduled for Thursday, Sept. 11, if the panel is seated on time, court filings show.

Legal scholars and practitioners note additional courtroom and appellate consequences when defendants proceed pro se. A defendant who chooses to represent himself cannot later claim ineffective assistance of counsel on appeal, removing one avenue of post-conviction challenge that often figures prominently in appeals involving alleged trial errors.

Simson pointed to historical examples to illustrate the risks. In the 1993 Long Island Rail Road mass shooting, convicted killer Colin Ferguson represented himself and used his time on the stand to confront victims, conduct his own questioning and create disruptive courtroom scenes. Observers have cited that trial as an extreme example of how self-representation can complicate fact-finding and the trial record.

Courtroom observers have also noted unusual juror questions and witness exchanges during the early proceedings in Routh’s case, though Judge Cannon has repeatedly urged the parties to focus on efficient, orderly presentation of facts. The judge was appointed by former President Trump, a detail that has drawn attention but does not change the legal standards that will govern the trial.

Routh’s choice to proceed without counsel means the trial will test how the court balances a defendant’s rights with the practical demands of a complex, politically charged criminal prosecution. Federal judges routinely take steps to ensure pro se defendants understand procedural rules and the potential consequences of their choices, and the court record will reflect what steps were taken here.

As the case moves forward, attorneys and legal scholars say the outcome may hinge less on whether Routh speaks for himself than on how effectively the court protects the fairness of the proceedings and ensures the government meets its burden of proof.

Routh at a rally in Ukraine in 2022

The trial is expected to occupy weeks rather than days, with witnesses and a packed evidentiary record anticipated. Court schedules and motions filed publicly will provide the most reliable timeline as the case proceeds through the federal court system.