Forty-eight percent of voters now believe that President Obama's policies are to blame for the bad economy, while 47 percent fault former President George W. Bush.

According to a new Rasmussen survey, Obama's 48 percent represents a three-point increase since last month, giving him a greater share of the blame than Bush for the first time since May 2009, when the question was first polled.

At that time, 62 percent of likely voters blamed Bush and 27 percent blamed Obama.

Today, different subsets of voter are deeply divided on the question. While both mainstream and independent voters tend to blame Obama, 87 percent of the political class continue to fault Bush.

The survey questioned 1,000 likely voters on July 30 and 31.