(CBS NEWS) — As Mitt Romney travels to Pittsburgh today, the Obama campaign is aiming to sow new doubt into the minds of Pennsylvania's swing voters as to whether the Republican presidential candidate is paying his fair share in taxes.
In a new ad airing in the battleground state, President Obama's team takes its latest swing at Romney for refusing to release more than two years' worth of his tax returns.
"Romney admits that over the last two years he's paid less than 15 percent in taxes on $43 million in income," a narrator says in the ad. Then, as the years 2009, 2008, 2007, 2006 and 2005 flash on the screen, the narrator continues, "Makes you wonder if some years he paid any taxes at all."
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