I think there is some bullshit agreement between Republicans and Democrats that they don't show this **** on TV.
They know they all lie like thieves on issues and just have opinions based on which way the wind blows in order to get elected. If they open up this kind of "look what I said 20 years ago", 90% of congress would go down the ******* (of course, we all want that here, so it's never going to happen).