Government shutdown and whose fault?

The government may be coming to a shutdown within the next several hours. Of course both sides are blaming the other. But whose fault is it really? I'd go out on a limb and say the 111th Congress (we are in the 112th now). In the 111th congress, they failed to enact a budget. How incredibly disappointing is that? And the kicker is, Democrats controlled the White House, House of Reps, and the Senate. So where's their excuse? It's nice and refreshing to see the House Republicans hold the hard line on having 61 Billion in cuts, which was promised when they were elected in the 2010 landslide. If our government cannot cut 61 Billion (when we are in the whole 1.65 Trillion alone this year), we've got problems. Problems similar to Greece. Finally..... Didn't Obama say that in his first term, he'd reduce the size of the deficit in half? Instead, he's pushed it up another 5 Trillion or so (he's been around 1.5 Trillion each of his three years).