Two separate Bloomberg stories on the economic slowdown's impact on President Obama's election hopes quoted Temple political scientist Christopher Wlezien. "Take the slope of the economy and that’s really a good indicator of what voters will do, how they evaluate presidents," said Wlezien, co-author of the forthcoming book The Timeline of Presidential Elections. "The state of the economy is not all that clear. What happens over the next four or five months is going to matter a lot to the president."