The FBI’s arrest of Roger Stone flows from the same source as the indictments of Michael Cohen and Paul Manafort and the federal investigation into payoffs of a porn star and a nude model. All of them are due to President Trump’s penchant for surrounding himself with sleazy people.

It’s possible that Trump is innocent of any and all crimes committed by Cohen and Manafort and the alleged crimes of Stone. We think the campaign finance rap on Trump’s hush money payments to his former mistresses is ridiculous. Still, the president is in legal and political peril because he lived in an ecosystem inhabited by lawbreakers and other ethically challenged people.