The lead is misleading. The internals are more intriguing.
Young voters, less likely to vote in the midterms, are most likely to blame Bush. However, the "middle class" who make between $40,000 and $75,000 are more likely to blame Obama.
And any blame that Bush may receive for presiding over the beginning of the downfall does not translate into trusting Obama's intervention in the economy over individual liberties or free markets. Americans are more likely to see Republicans, not Democrats, as more trustworthy on crafting an economic solution.
"while most voters place the blame on his predecessor, they still have more confidence in their own economic judgment than in Obama’s. Only 28% of voters trust the president’s judgment more than their own when it comes to economic issues. Sixty-one percent (61%) trust their own judgment more.. 77% of unaffiliated voters – and 79% of Republicans – trust their own economic judgment more than Obama’s.. Voters are more closely divided over which party to trust more on economic issues: 46% trust Republicans more, while 42% trust Democrats."