OPINION: Former President Donald Trump is sequestered in a downtown Manhattan courtroom for a second week beginning Tuesday. The good news for the former president’s fans is, even a jury in this deeply Democratic jurisdiction might have second thoughts about endorsing the insubstantial charges laid out by the prosecution. Until now, District Attorney Alvin Bragg has been cagey about the precise nature of the charges — for good reason. Observers assumed there must have been more underlying the