A donor luncheon at Donald Trump’s Mar-a-Lago estate over the weekend provided the former president a chance to size up his potential 2024 running mates, several of whom were in attendance, and to escalate attacks on prosecutors in his four criminal cases. On Monday, he is scheduled to be back in a New York courtroom as a trial continues in one of those cases. Trump has been charged with falsifying records to cover up paying hush money to an adult-film actress during the 2016 presidential campaign.