Ashraf Ghani: An urbane, Western-educated technocrat, Ghani, 60, has spent much of his adult life in exile. He served as Afghanistan’s finance minister, but broke with Karzai and left the government in 2004. Like Karzai, he is from a prominent Pashtun family, and may draw off some of the president’s support from the ethnic group they have in common. He is a former ranking World Bank official, university professor and special advisor to the United Nations. Ghani is well respected by Western officials, and American political strategist James Carville advised his campaign, but surveys have put his support only in the 6% range. (Massoud Hossaini / AFP/Getty Images)