For the first time in his term, a majority of Americans say that President Obamabears responsibility for the state of the U.S. economy, a new Gallup poll finds.

More Americans say former President George W. Bush is to blame, but that number is slowly dropping as Obama's is ticking upward.

The survey, conducted Sept. 15-18, found that 36% blame Bush "a great deal" and 33% blame him "a moderate amount." By comparison, 24% now blame Obama "a great deal" while 29% blame him "a moderate amount." That's a shift from an 18%/32% split in an April survey.

Still, one in five voters say Obama bears no responsibility for the economic problems facing the country, while just 9% say that of Bush.