This is what the President said on 9-12, the day after the attack on the US Consulate at Benghazi:
“No acts of terror will ever shake the resolve of this great nation, alter that character, or eclipse the light of the values that we stand for.”
As noted by one of my colleagues, the President mentioned “acts of terror” but didn’t directly say Benghazi was one. When he directly addressed the attack he called it an “outrageous and shocking attack.”
And then for the next week (or more) the President and the Administration continued to push the protest / video as to why the attack.
5 days after President Obama spoke on the 12th of September, UN Ambassador Susan Rice was on all the Sunday Morning shows insisting the cause of the trouble was the video and a protest. She did not say terrorism.
And as late as September 18, on the David Letterman Show, President Obama was promoting the protest / video reason for the attack. He did not say it was terrorism.
It is noteworthy that the State Department, on the eve of the House hearing on the terrorism at the Consulate, held a conference call for the media. In that call and on the next day at the hearing, the State Department said that in the time leading up to the attack, it was calm outside the Consulate and I think the word ‘normal’ was used to describe what was going on. There was no suggestion of any protest of any kind nor video.