Romney at Detroit Economic Club. (Flickr/Creative Commons)

In the latest survey conducted by American Research Group (ARG) after the first presidential debate last week, Romney takes 48 percent support in Ohio, edging President Obama at 47 percent.

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The presidential election has become a tight race to the White House after President Obama’s disappointing performance at the presidential debate in Denver, Colorado.

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Ohio’s 18 electoral votes are critical to Romney’s candidacy, and while both candidates are visiting Ohio on Tuesday, the final day of voter registration in the state, Romney will be staying for intense campaigning.

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The state has been the center of sizeable campaign traffic with the campaigns, party committees, super PACs and other independent groups having spent nearly $92 million to run ads on broadcast TV in Ohio since the start of the general election. More than $20 million of that has just come in the last two weeks, according to Campaign Media Analysis Group.

"The governor still has problems here, especially with working women in the critical suburban areas. And the president benefits from an improving Ohio economy," says CNN Chief National Correspondent John King. "But our numbers reinforce why there has been $90 million spent on presidential campaign TV ads the past six months: This is the battleground of the battlegrounds."

For more Neon Tommy coverage of the 2012 presidential election, go here.

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