When President Obama and Mitt Romney aren't tearing each other apart, they are contending with hecklers on the campaign trail. This week, Stephen Colbert and Jon Stewart both looked into the psychology of the presidential bully.
Meanwhile, Conan O'Brien spent some quality time with Mitt Romney's five sons. Jimmy Kimmel celebrated Father's Day with another YouTube challenge. David Letterman and Jimmy Fallon each taught Justin Bieber valuable lessons. And for some reason Jay Leno decided to make out with Andy Samberg.
Below are my favorite clips of the week. What were yours?
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