Jeet Heer with an excellent observation:
My worry is that: Because of his attempts to portray himself as something of a dove -- even though that's arguable at best -- Trump will make it more difficult in mainstream politics to challenge Washington's hawkish consensus. The president's foreign policy incompetence and general terribleness will mean that if there is another leader who legitimately shrinks from using the hammer of the U.S. military to treat all challenges as a nail, they'll be tarred by association with Trump's rhetoric.
Maybe that's too hopeful, actually. It's difficult to position yourself for president in this country without buying into that hawkish consensus. The peaceniks are forever at a disadvantage.