I don't know how much longer Trump should let Mueller continue his fruitless witch hunt on the taxpayer dollar. He has every reason in the world to tell Mueller to piss off, but I hope he doesn't. I hope he lets Mueller continue his quest until he's done. It still won't placate those that hate Trump. Nothing ever will. But it'll create less of a meltdown than it will if Trump shuts him down. Mueller will learn stuff about Trump in this quest that Trump's opponent will use in the 2020 presidential campaign.