The Fed played a key role in one of the protest targets, the 2008 Wall Street bailout that critics say let banks enjoy huge profits while average Americans suffered high unemployment and job insecurity.
"We have too many people out of work," Fisher said. "We have a very uneven distribution of income. ... We have a very frustrated people, and I can understand their frustration."
Republicans claim that Obama is "inciting the mobs" by sympathizing with the Occupy Wall Street protesters.
Republican Sen. Rand Paul joined in the attack on the White House, calling Obama’s comments “inflammatory,” and saying the protesters reminded him of the Paris mob during the French Revolution.