The race for the White House was thrown wide open this week when Mitt Romney emerged as the surprise winner in the first presidential debate.
But close analysis of video footage suggests he may have had some help at the 'Duel in Denver' with Barack Obama - in the form of hidden notes.
Such a move would be against the rules, which state: "No props, notes, charts, diagrams, or other writings or other tangible things may be brought into the debate by any candidate."
However, others have claimed that the folded white object in the Republican challenger's hand was just a hankie rather than smuggled notes.
It's not the only strange controversy to have hit the first president debate after Big Bird became an unlikely star.
During the debate with Mr Obama, Mr Romney called for cutting funding to Sesame Street TV channel PBS, despite saying: "I love Big Bird."
Big Bird responded by tweeting on the Sesame Street account: "My bed time is usually 7:45, but I was really tired yesterday and fell asleep at 7! Did I miss anything last night?"
And Mr Obama brought up his opponent's plans for Big Bird during a campaign stop in Madison, Wisconsin.
"I just want to make sure I've got this straight: He'll get rid of regulations on Wall Street, but he's going to crack down on Sesame Street," Mr Obama said.
"Thank goodness somebody's finally cracking down on Big Bird! Who knew that he was responsible for all these deficits! Elmo's got to watch out!"
After the debate, Mr Obama's lead over Mr Romney has narrowed to just 2 percentage points.
Sauce has video.
According to Willard's staff, it was a handkerchief.
I have no idea what to make of this mess right here. I've watched the gif and video repeatedly.