A series of explosions in Iraq killed nearly 3 dozen people as lawmakers held a hearing to figure out why there has been a resurgence of al Qaeda there.

Rep. Duncan Hunter (R-Calif.), who fought in the Battle of Fallujah in 2004, told Martha MacCallum today why Fallujah is slipping to a majority controlled by al Qaeda.

Al Qaeda on the Rise in Iraq

“We’re not there anymore, and we left too quickly with no leave-behind force … Unfortunately, Iraq is gone. There is no getting this back.”

Hunter said that the military asked for about 20,000 troops to remain in Iraq and Obama offered a few thousand. “The status of forces agreement would have made sure that we had troops there, and enough to do something.”

“We’ve now lost what we fought so hard for,” he said.

Watch his full interview above.