President Obama has called Afghan President Hamid Karzai to congratulate him for his victory in a controversial election.

"Although the process was messy, I'm pleased to say the final outcome was determined in accordance with Afghan law," Obama said.

The runoff election was supposed to be held this weekend, but Karzai's top challenger, former Foreign Minister Abdullah Abdullah, dropped out. He claimed the results would have been rigged, just like the original Aug. 20 election.

Now that there is no election in Afghanistan, is there any reason for President Obama to delay his decision on troop levels? Daveed Gartenstein-Ross with the Foundation for the Defense of Democracies joined CBN News to answer this question and more. Click play to watch.

Karzai's challenger claimed the runoff also would have been stacked against him.

Meanwhile, U.N. Secretary-General Ban Ki-moon is in Afghanistan after a United Nations investigation found voter fraud in favor of Karzai.

It's unclear if he will push for the runoff vote to go forward as planned without a challenger.