Since Trump frames his withdrawal as the fulfillment of a political pledge, we wonder how many of the president’s supporters — Republicans among them — can swallow his Syria decision. Trump never adopted a traditional Republican platform, but his heterodoxies and shortcomings get overlooked or rationalized by other elements of his appeal. Trump dislikes free trade? Sure, but tax cuts and deregulation fueled economic growth. Trump entangled himself in the Mueller investigation and faces impeachment by the Democratic-led House? Part of the cost of taking on the Washington establishment.