That may be a little misleading. Obama's ratings are currently *average* for *any* US president at this point in the second term. In other words, he's mostly been more popular except for the slip up in a website (reference Medicare Part D and several other program rollouts before frothing).
Now CONGRESS on the other hand, hasn't been this unpopular ever (<9% approval) ... even during the Civil War I'm pretty sure. The GOP would be in the dustbin of history if it weren't for extreme gerrymandering (every party gerrymanders to some extent when given the chance - the GOP has taken it over the cliff, which is why some states have implemented neutral scientific districting).
http://www.politifact.com/punditfact...gs-are-line-o/