In this image from video provided by CBS News, CBS Evening news anchor Scott Pelley interviews President Barack Obama in the Blue Room of the White House in Washington, Monday, Sept. 9, 2013. Obama is grasping all his tools of persuasion in trying to turn around public opinion and rally congressional support for a strike against Syria. Hes got tricky ground to cover in his Oval Office address Tuesday night and acknowledged on the eve of it that Americans dont back his course. (AP Photo/CBS News)