Voters say Mitt Romney knows how to run a business, but they aren't quite sure about Obama. Does the issue matter in the election? (Gage Skidmore/Flickr)

If trends from past presidential races hold true, voter interest in the election will only go up during the last two months.

The poll also is the latest to show the Democratic National Convention last week provided a boost to President Barack Obama in polling against Republican presidential candidate Mitt Romney. While voters still question Obama's ability to handle the nation's ongoing economic crisis, they still favor him by a slight edge.

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