Washington (CNN) - The Obama re-election campaign so far has bought about $64,000 worth of ad time in five key battleground states to air a new two-minute advertisement attacking Bain Capital and Mitt Romney’s record heading the private equity firm, according to a Republican source who tracks ad buys.

The source said the buy information is preliminary because more details about the buy in additional media markets is still coming in, but it is clear that the campaign is not spending very much on this ad, and is instead hoping to garner tons of free news media attention from it. The campaign held a conference call Monday morning after announcing the ad.
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