Defense attorneys in former President Donald Trump‘s Georgia racketeering case on Friday sought to convince a judge that District Attorney Fani Willis should be disqualified based on an “appearance of a conflict of interest” as closing arguments commenced in the blockbuster case.

Lawyers for the Fulton County DA office and defense attorneys clashed over whether, in order to get Willis removed from the case, the defense needed to present concrete evidence that a conflict of interest occurred — or whether simply the appearance of one is enough.