Vice President Joe Biden says the business background that Republican presidential challenger Mitt Romney touts on the campaign trail doesn't necessarily make him fit to run a country.

Campaigning in Ohio for his boss, President Barack Obama, Biden said a company president has to answer to investors while the U.S. president must answer to the entire country _ not just one segment of it.

Biden said looking out for the U.S. is what good Democratic and Republican presidents have done.

Romney's chief campaign argument is that his business background makes him better suited than Obama to turn around the economy and create jobs.

Aides say Romney had a net job creation record in the private sector and as Massachusetts governor.

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