It’s too late. Now they’re going to say they can’t prosecute during an election or it’ll unfairly affect the outcome, and then when he wins he gains immunity. They’ve had 4 years to get even a single conviction out of 91 charges, and they haven’t even started a single trial. They’re afraid of setting precedent of prosecuting politicians because they don’t want to give up their own self-appointed immunity, so they let the SCOTUS decide, and SCOTUS is a partisan hack-job right now (and probably for the rest of our lives).