A judge in Georgia will weigh this week whether to disqualify Fulton County District Attorney Fani Willis in the election fraud case against former President Donald Trump and 14 others accused of conspiring to overturn his 2020 election loss.

Trump and several of his co-defendants are hoping to convince a judge that the relationship between Willis and her hired special prosecutor, Nathan Wade, created a conflict of interest that should result in disqualifying Willis’s entire office from handling the case. The core question before the judge is whether Willis financially benefited from hiring Wade, who has been paid more than $650,000 in taxpayer funds for his work on the case.