Mary Altaffer/GettyIt’s only the second day of Donald Trump’s New York trial, but the judge has already seen fit to sternly warn the former president to shut up in the courtroom, after New York Supreme Court Justice Juan Merchan witnessed Trump mumbling something while facing a juror in the courtroom.“Your client was uttering something in the direction of the juror,” Merchan said to Trump’s lead attorney, Todd Blanche. “I won’t tolerate that. I will not have any jurors intimidated in this courtr