Commentary: Trump's candidacy complicates a potential criminal case against him, but it can't protect him

The consensus in the wake of Donald Trump's announcement that he is running for president in 2024 is that he is hoping to avert, or at least gum up, a decision to file criminal charges against him by the Department of Justice and the Fulton County district attorney in Georgia.

If that's Trump's hope, it rests, like so much of his governance, on ignorance and overconfidence. His announced candidacy erects no major roadblock to prosecution by the Justice Department or by Atlanta District Attorney Fani Willis.

But it does introduce a fly