Here is presidential hopeful Herman Cain unable to say whether he agrees with Obama's actions in Libya: "Got all this stuff twirling around in my head," he says to explain his confusion. Remember, this man wanted to be PRESIDENT. Of AMERICA. He has since suspended his campaign after a string of sexual harrassment allegations.
Oh, Ed. This video of Miliband repeatedly telling a BBC interviewer that "these strikes are wrong" and "both sides should get round the negotiating table and put aside the rhetoric" might be evidence of him staying on-message, but it did nothing to help him shake the 'weird' thing.
The Republican primaries were the gift that just kept on giving in terms of hand-on-forehead moments. Here is Texas governor Rick Perry struggling to recall the name of the government department he would axe if he was elected. It's a masterclass in how not to draw attention to your failings.
If the Republicans had more than their fair share of "oops" moments, so did the Labour leader. Here he is, unable to name all of the candidates for the Scottish Labour leadership.
5. Nick Clegg's on-mike gaffe 
Let's not forget Nick "punchbag" Clegg being caught on tape confirming every Lib Dem's worst fear about coalition. "If we keep doing this we won't have anything to bloody disagree on in the bloody TV debates," he tells Cameron, after another chummy press conference. Of course, this was before the AV referendum and Europe came along to create trouble in paradise.