Donald Trump exhorted his followers to come to the Manhattan courthouse where he’s on trial — and expect to face resistance from law enforcement. The former president is facing felony counts of falsifying business records to cover up a hush money payment intended to boost his election chances in 2016, and he has repeatedly called his supporters to protest outside the courthouse and has falsely claimed that police would likely try to block them. “I’m at the heavily guarded Courthouse. Security is that of Fort Knox, all so that MAGA will not be able to attend this trial, presided over by a highl…