"There is a peaceful path ... to legitimacy," Obama said, and "we hope they take it."
The president said Iran's "faith, sovereignty, and traditions" can be accepted while the country's government nevertheless adheres to a set of "international norms and principles" regarding violence and the right of peaceful dissent.
He argued that a broad cross section of Iranians have serious questions about the legitimacy of the June 12 election. Ultimately, he said, it is up to the Iranian people to decide what to do to resolve the current crisis.
The president made his remarks during a news conference at the White House.