Lanny Davis, an adviser for Michael Cohen, questioned Rudy Giuliani’s mental health Thursday as the row over President Trump and his legal team’s attacks on Cohen’s family intensifies.

Trump used a recent Fox News appearance and his Twitter account to encourage federal investigators to look into Cohen’s father-in-law, Fima Shusterman. In one of his freewheeling interviews over the weekend, Giuliani condoned Trump’s behavior on CNN, describing Shusterman as a “criminal.”