Hush money trial prosecutors hit back at Donald Trump’s latest assault on Judge Juan Merchan in a filing that dubs the former president “vexatious and frivolous,” court records show. Manhattan District Attorney Alvin Bragg’s team issued a blistering response to Trump’s argument against the judge who oversaw the first trial to conclude with the criminal conviction of a U.S. president. “Defendant’s motion to renew is a vexatious and frivolous attempt to relitigate an issue that was twice addressed by this Court,” the letter states. “This regurgitated showing does not come close to meeting the st…