Former President Donald Trump and other defendants in Georgia’s election interference case filed court papers Monday seeking to appeal a judge’s ruling not to disqualify Fulton County District Attorney Fani Willis from their prosecution or dismiss the charges.

The resignation of the special prosecutor with whom Willis had a romantic relationship is not enough to correct the appearance of impropriety the judge found, according to a court filing by attorneys for Trump, former New York Mayor Rudy Giuliani, former White House chief of staff Mark Meadows and five other defendants.