KABUL, AFGHANISTAN -AUGUST 27 :  An Afghan stands in front of a poster of President Hamid Karzai on August 27, 2009 in Kabul, Afghanistan. President Hamid Karzai extended his lead over his top challenger as new results slowly come out but he remains short of the 50 percent threshold that would allow him to avoid a Presidential runoff. An ongoing controversy over fraud threatens to discredit an election that the Obama administration considers a key step in a new strategy to turn back the Taliban insurgency. It could also delay formation of a new government and fuel growing doubts in the United States about whether its worth continuing to fight the war in Afghanistan. Getty Images logo Getty Images 5 months ago

KABUL, AFGHANISTAN -AUGUST 27 : An Afghan stands in front of a poster of President Hamid Karzai on August 27, 2009 in Kabul, Afghanistan. President Hamid Karzai extended his lead over his top challenger as new results slowly come out but he remains short of the 50 percent threshold that would allow him to avoid a Presidential runoff. An ongoing controversy over fraud threatens to discredit an election that the Obama administration considers a key step in a new strategy to turn back the Taliban insurgency. It could also delay formation of a new government and fuel growing doubts in the United States about whether its worth continuing to fight the war in Afghanistan.