When it comes to foreign policy, Republicans and Democrats are each suspect in their own way. Republicans used to be the party of competence in world affairs. They lost that aura during President George W. Bush’s first six years in office, when he mismanaged the wars both in Iraq and in Afghanistan. The Democrats, for their part, are often accused of being wobbly on national security, lacking both toughness and gumption. Unfortunately, President Barack Obama’s recent handling of the war in Afghanistan plays to those charges. Being awarded the Nobel Peace Prize will only intensify the perception that he is a weak war leader.