Peter Navarro, former aide to ex-President Donald Trump, faced a heckling incident on Tuesday as he exited a Washington, D.C., courthouse following the selection of a jury panel for his impending criminal trial on contempt of Congress charges.

Navarro, known for his role as Trump’s trade adviser and for his promotion of claims related to voter fraud in the 2020 election, is currently confronting two misdemeanor charges. He stands accused of failing to comply with a deposition request and a subpoena issued by the House committee investigating the January 6 attack on the U.S. Capitol. The trial is slated to commence on Wednesday.

Each charge against Navarro carries a potential sentence of up to one year in prison and a maximum fine of $100,000. Despite the gravity of the allegations, the 74-year-old has maintained his plea of not guilty.