Rep. Cummings: Petraeus scandal a 'critical moment for the military'

The investigation into the Petraeus sex scandal expanded overnight, with the FBI reporting that the top U.S. Commander in Afghanistan, General John Allen, is also being investigated for sending inappropriate emails to Jill Kelley, a woman linked to Petraeus.

A defense official tells CNN that authorities are looking at up to 30,000 pages of documents.

Rep. Elijah Cummings (D-MD) weighs in on these developments on Starting Point this morning.

"I do believe that it’s becoming quite serious when you talk about 20-30,000 emails," Cummings says. "But I think we need to let it run its course. I think what the FBI has to do and which I know they are doing, is following the evidence wherever it may lead so we’ll have to wait and see."