New poll: Must-win state of Ohio is slipping away from Romney

President Barack Obama opens up a big lead in what may be the most crucial swing state in the country, Ohio. A poll out Wednesday has him up by double digits. No Republican presidential nominee has ever won the presidency without winning the buckeye state.

CNN's Erin Burnett talks to Political Reporter Peter Hamby about why Ohio is slipping away from Mitt Romney.

Why Romney is losing must-win Ohio

Polls show Mitt Romney trailing President Barack Obama in just about every one of the swing states where the 2012 campaign is being waged.

But Romney appears to be in deeper trouble in Ohio than elsewhere, an alarming development for Republicans who know that the candidate's White House chances begin and end with the kind of middle-class voters who reside in places such as Akron, Cincinnati and Zanesville.

So why exactly is Romney trailing?

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