Michael Cohen, former President Trump’s ex-fixer and personal lawyer, said in newly unsealed court filings that he accidentally gave his lawyer fake legal citations concocted by the artificial intelligence program Google Bard. U.S. District Judge Jesse Furman called three case citations into question earlier this month after they were used in a motion to end Cohen’s supervised release early. Cohen pleaded guilty to charges including tax evasion and campaign finance violations in 2018 and served some time in prison. Cohen wrote in a sworn declaration unsealed Friday that he has not kept up with “emerging trends (and related risks)” in...