Since the purpose of Bragg's shamdictment was to impede a run for President, Trump should, among other motions, demand his Constitutionally guaranteed speedy trial. At every delay he should move for dismissal with prejudice.
And since Bragg is trying to destroy Trump's political career, ethics complaints should be filed against Bragg at the NY state level (just to force Bragg to spend time and $$ defending himself). And at the Federal level if Bragg is allowed to argue cases in Federal courts.