This Pew release is worth reading:
The public’s hostility toward government seems likely to be an important election issue favoring the Republicans this fall. However, the Democrats can take some solace in the fact that neither party can be confident that they have the advantage among such a disillusioned electorate. Favorable ratings for both major parties, as well as for Congress, have reached record lows while opposition to congressional incumbents, already approaching an all-time high, continues to climb.
It's not just Washington:
Just 25% say the federal government has a positive effect on the way things are going in the country and about as many (24%) say the same about Congress. Yet the ratings are just as low for the impact of large corporations (25% positive) and banks and other financial institutions (22%). And the marks are only slightly more positive for the national news media (31%) labor unions (32%) and the entertainment industry (33%).