Blaming Bush, who does deserve it, does not cover events that occurred during the Obama presidency as well, which were economic missteps of a very serious nature. Obama for his part, did invoke Romney's wealth and lower tax rate and his alleged intent to do the same for rich folks in America. However, Romney denied said claims.
Obama exhibited a clear working knowledge of the nation's financial affairs, but Romney's business experience and ability to cite how he would apply it to the U.S. economy, far outshone any economic speak that came from the president.
Pollster States If The U.S. Economy Does Not Improve Barack Obama Will Lose The Election To Mitt Romney