I doubt it matters who the President is... You can not change a country like Afghanistan unless they want to change. They have and are living in the past (maybe a century or more) and can not be brought up to the ideas of today regardless of our desires.
We could win the war, but these backward folks would go right back to their own ways within a few short years. Winning means nothing to us and losing means absolutely nothing to them...
These folks are barbarians in the true sense and will not be changed by us or anybody else...
It does matter who the President is when he wants to tear our country down.