If Joe Biden were a typical politician, his choice on Afghanistan would have been easy. Political wisdom says you should never accept consequences today that you can postpone until after the next election, if not longer. Deceptive gimmicks and clever evasions are always preferable to painful solutions that pay off only in the long run. Biden could have persisted in prolonging the stalemate. He could have quietly expanded our troop presence to hold the Taliban at bay. He could have blithely accepted the deaths of more American troops — and more Afghan civilians — to maintain the status quo. But the president whose political skills earned him 36 years in the Senate and eight in the vice presidency chose to act with statesmanlike foresight. When it came to our longest military conflict, he could not countenance the option embraced by his three immediate predecessors. George W. Bush, Barack Obama and Donald Trump failed to win the war and refused to end it. Instead, they dragged it out, each leaving the problem to the next occupant of the White House. They wimped out to avoid being accused of wimpiness.