Washington (CNN) - It's grabbing a lot of media attention, but a new controversial television commercial from an independent group supporting President Barack Obama's re-election has not yet run as a paid advertisement on TV.
The ad, announced yesterday by the pro-Obama super PAC Priorities USA Action, appears to blame Republican challenger Mitt Romney for the cancer death of the wife of a man who was laid off from a steel mill after the company he worked for, GST Steel, was shut down by Bain Capital, the private equity firm co-founded by Romney.
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A closer look by CNN poked holes into the ad's timeline.
While the spot has garnered plenty of media attention over the past 24 hours, the commercial apparently has yet to actually run.
The group said Tuesday the ad, titled "Understands," was part of their current $20 million television and online buy, and that the 60-second spot would run in the battleground states of Iowa, Florida, Pennsylvania, Virginia and Ohio.
Priorities USA told CNN Wednesday that the ad "hasn't started running yet but will soon."
- CNN's Paul Steinhauser and Brianna Keilar contributed to this story