Because the ordinary citizen who SHOULD be running for office doesn't have enough money! I would like to see gov't funded elections. level the field. Running for office? Here's x dollars to spend on it. Not allowed to spend any more than that!
That is one good reason along with the fact that the intelligent people with common sense have enough of both to not want to get mixed up in the madness known as politics. That is one reason we rarely have qualified people in office.
Many people no longer see representation as a noble duty like the founding fathers did. They see it more as an opportunity for either power or furthering a personal agenda (or both) instead of service to their country. The decent people we need to step up don't really want to get involved with the hooligans in DC. And, when a good person does stand tall, they get overwhelmed and knocked down by the massive political machine and end up being ineffective.
As to the video, we've seen this dope before. Someone else said it on here before, "....after 18 re-elections over 37 years, the people should have already gotten rid of this clown."