Unfortunately, the Republicans (and Democrats) are tied to the money shakers and that is the money interests! When you look at this as it is, you begin to understand just why they hate the Tea Party (and their policies)!
We are against big government, big spending, and the supporters are trying their best to get money out of Washington. They are also the big providers of money to campaigns - so who are you going to cater to?
We don’t have government by the people, we have government by the most generous money folks. Do you really think that policy is going to out-do money donated to these politicians? Dream On!! The Tea Party lives for policy but can not control politicians that decide that money for their re-election is king. Not sure that it can every change.
America has become just another corrupt semi-democracy and will never regain their full status until money is taken out of the election system.
Repeal the 17th Amendment. That will remove the need for campaign cash from the Senate. It will also obviate the need for term limits, since it is unlikely that legislatures will continually reappoint a senator for 30 years. The position is much more likely to be rotated through by the local powers that be who are far more beholden to their local voters than they are to deep pocket contributors.