In the age of slick PR machines, it is difficult to get a sense of a candidate's real personality or feelings on an issue. But with microphones all around them, private conversations and off the cuff remarks sometimes slip out. On Tuesday, French President Nicolas Sarkozy was the most recent leader to land in hot water. The Takeaway looks at some of the biggest political gaffes made when the microphones were left on. Journalists at the G20 summit overheard a private conversation with President Obama. Talking about the Israeli Prime Minister Benjamin Netanyahu, Sarkozy said, "I can't stand him any more, he's a liar." Obama replied, "You may be sick of him, but me, I have to deal with him every day."