Well, the man did learn his politics in Chicago where a riot or two is a pro forma thing:

Obama “excited” by Iran’s robust election debate
Fri Jun 12, 2009 1:42pm EDT
By David Alexander

WASHINGTON (Reuters) - President Barack Obama said on Friday he was hopeful the robust debate taking place in Iran’s presidential election would advance his administration’s efforts to engage longtime U.S. rival Tehran in new ways.

“We are excited to see what appears to be a robust debate taking place in Iran,” Obama told reporters when asked about the Iranian election during an event at the White House.

“Whoever ends up winning the election in Iran, the fact there has been a robust debate hopefully will advance our ability to engage them in new ways,” he said.