Mitt Romney's Son Tagg: I Wanted to Clock President Obama

Mitt Romney's son, Tagg, says he had the urge to take a swing at President Obama when the Chief Exec called his dad a liar.

Tagg made his comment on a radio show, when asked how it felt to hear Obama accuse his father of fibbing.

As for why Tagg resisted ... his first reason -- lots of secret service around. Tagg went on to say ... accusations of lying are all part of the political process.