The first is Russian-born comedian Yakov Smirnoff. He was very famous in the 1980s in America. He was famous for making fun of idiomatic expressions in English, because if you think of them literally, they sound really strange; However, for native speakers, we never think about them like this. You get bonus points, if you can spot the grammar mistakes in his monologue.
The second video is of Ronald Reagan re-telling old Soviet Union jokes in English. The sound is very low, but the video is worth watching. It's very representative of the cold war and the attitudes of the two super-powers.
The last is a recent 'spoof' on The Tonight Show with Jimmy Fallon of Obama's and Putin's most recent phone conversation.
