A former Department of Justice appointee under former President Barack Obama said special counsel Robert Mueller “almost certainly won’t indict” President Donald Trump at the conclusion of his investigation. Eric Columbus, former senior counsel to the deputy attorney general under Obama, explained on Twitter why we should not expect any criminal charges against Trump, despite a growing chorus of pundits and Democratic politicians predicting that Mueller is building an obstruction of justice case. Mueller almost certainly won't indict Trump – not because it would be unconstitutional, but because Mueller's authority is very different from Ken Starr's was. I can explain....