Obama has pushed it even further in only 4 years than Bush did in 8...
I believe you're mistaken, at least partially. It's a common misconception that Obama contributed more than Bush to the financial collapse but the vast majority of statistics I've seen have suggested otherwise.
If we look at unemployment for instance, there was a sharp rise that began in 2008, which can hardly be blamed on Obama. Obama came into office as things were already going poorly and while he may not have done enough to fix it, the mess was clearly not his doing.
Since he's been in office, we've seen a slow but steady improvement in the economy and a decrease in unemployment rates. Though his handling of fiscal policies has been poor, he's still above Bush in my eyes, who cut taxes and began two unfunded wars.
Sources too, since everyone here loves data: http://data.bls.gov/timeseries/LNS14000000
Note that Obama became president in the middle of that big uphill slope.