Donald Trump has committed a lot of shady acts. This is the wrong one to indict him on.

No one will argue that the Manhattan district attorney doesn’t have the authority to prosecute a former United States president. 

He certainly does.

And plenty of us left and right will argue that Donald Trump is an unprincipled man who cuts corners and plays with dynamite. 

He certainly does.

But it is a reckless abuse of authority for the Manhattan district attorney to pursue a possible misdemeanor violation against Trump that is seven years old and so thin, both the Justice Department and the Federal Election Commission dropped it. The case deals with...