The lawyer said the former president may join a motion accusing the lead prosecutors in the election interference case of being romantic partners and seeking to disqualify them.
Accusations involving her relationship with the lead prosecutor she hired are seen as unlikely to derail the case but could cause serious distractions.
Nathan Wade met with White House staff members in 2022, when he was seeking witnesses for the investigation into whether Donald J. Trump interfered in the 2020 election in Georgia.