Lots of people say that the problem with politics is because there is too much extremism. Notice that usually when the subject of extremism comes up it is invariably to claim that republicans are extreme.
Partisanship wouldn't be as much of a problem if only both parties were each responsible. We haven't had any budget in the last 3 years. And the federal government has had more income than spending in only 8 years since 1950. (table 1)
If we had a balanced budget every year, and we ended all programs that don't work, then I think that many of our political problems would be solved. Even if we don't like it when the other party gets what they want.