President Obama delivered a defiant defense Monday of his administration's response to the Benghazi terror attack, calling the revived controversy over the matter a "sideshow." 

The president addressed the issue during a press conference alongside British Prime Minister David Cameron, who is visiting Washington. Obama denied any suggestion that there was a cover-up, questioning recent reports that showed a State Department official trying to water down the administration's initial story-line on what happened the night of Sept. 11.