Carter : Obama considering `` possible changes '' to Afghanistan troop drawdown timeline . After Ghani 's election last year , Afghanistan and the United States signed a security agreement that allowed U.S. troops to stay in Afghanistan beyond the previous December 2014 deadline to withdraw . Carter will visit U.S. troops and Republican officials during his less than two years stay in U.S. .
Carter : Obama considering `` possible changes '' to Afghanistan troop drawdown timeline . Carter will visit U.S. troops and Republican officials during his less than two years stay in U.S. .