WASHINGTON - Former president Bill Clinton says he believes President Barack Obama is wise to step back and rethink U.S. policy in Afghanistan before approving the dispatch of additional troops there.

Appearing on a news show Tuesday, Clinton said he things are "teetering there," and he believes the Obama should wait at least until there is a resolution of the disputed presidential election.

Clinton told NBC's "Today" show "maybe the resolution would be to have both the top candidates in some configuration in the Afghani government going forward."

Preliminary results from the Aug. 20 poll show President Hamid Karzai winning with 54.6 per cent, but if enough votes are thrown out, it could drop him below 50 per cent, forcing a run-off with top challenger Abdullah Abdullah.