Party affiliation, pre-shutdown Democrats 35%, Republicans 30% Independents 32%. Post shutdown Democrats 30%, Republicans 21% Independents 47%. That is the highest percentage for independent since the shutdown. A year latter at the end of September 2014 the numbers stood Democrats 29%, Republicans 26% and Independents 42%. I haven't seen any figures for after the election.
Now independents seem to blame both sides or all sides more than taking sides. I should say the biggest chunk. Although the second biggest chunk would probably support the president with the smallest the congress. That is the nature of independents who want nothing else than the parties to work together.
I think in a long winded way what I am saying all parties get hurt, the president get hurt the least. Probably because he has the bully pulpit and he can shout blame the loudest.