At G20, he’s a diminished and isolated leader on the world stage, unable to confront Putin over his Ukraine aggression or election interference, or Mohammad bin Salman over the killing of Jamal Kashoggi. Back home, the White House is in turmoil, his agenda is in question, he’s seen on Capitol Hill as “a very unreliable partner in legislating with the attention span of a gnat,” and in the Mueller investigation, “Individual 1” may soon become “Defendant 1.”