Power-Sharing Deal Reached in Afghanistan

Abdullah Abdullah and Ashraf Ghani Ahmadzai shake hands after signing a power-sharing deal at the presidential palace in Kabul, Afghanistan, Sept. 21, 2014

Supporters of Ashraf Ghani Ahmadzai celebrate his win on the street in Kabul, Afghanistan, Sept. 21, 2014.

Supporters of Ashraf Ghani Ahmadzai celebrate with music and dancing near his residence after he was named the winner and next president by the Afghan election commission, in Kabul, Afghanistan, Sept. 21, 2014.

Ashraf Ghani Ahmadzai leaves after signing a power-sharing deal as president Hamid Karzai, left, stands at the presidential palace in Kabul, Afghanistan, Sept. 21, 2014.

Abdullah Abdullah and Ashraf Ghani Ahmadzai sign a power-sharing deal at the presidential palace in Kabul, Afghanistan, Sept. 21, 2014.

Ahmad Yousuf Nouristani speaks during a press conference in Kabul, Afghanistan, Sept. 21, 2014.

Ahmad Yousuf Nouristani, chairman of Afghanistan's Independent Election Commission, center arrives for a press conference in Kabul, Afghanistan, Sept. 21, 2014.