(CNN) - The super PAC backing President Barack Obama uses the Olympic "parade of nations" to mock Mitt Romney's reported overseas investment accounts in a television ad released Wednesday.
The minute-long ad from Priorities USA is set to air in Florida, Ohio, Pennsylvania and Virginia during broadcasts of the London Olympics, the group said. The games begin Friday.
An official with the group said the ad was part of a larger $20 million television and Internet push "to educate voters about Mitt Romney's business record and policies that hurt middle class families."
The spot features an announcer detailing Romney's accounts as video rolls of past Olympic opening ceremonies.
"Welcome to the Olympics!" the announcer says. "There’s Mitt Romney, who ran the Salt Lake City Games, waving to China – home to a billion people. Thousands owe their jobs to Mitt Romney’s companies."
Romney, who will attend the London opening ceremony as part of a three-nation foreign tour, was the president and CEO of the Salt Lake City Winter Games in 2002.
His campaign frequently cites his experience there by saying he turned around a failing operation into one of the most successful games in history.
The spot latches onto a now-familiar attack line from Obama's team, which has hit its rival for reportedly shipping jobs overseas during his time as chief executive of Bain Capital.
Romney's team counters that he left Bain before the firm invested in companies that outsourced jobs, though some records indicate he was still listed as the firm's CEO.
The Romney campaign has also pointed to a nonpartisan fact-check from FactCheck.Org, which poked holes in the "outsourcer" claims, and recently launched a new offensive accusing the president of outsourcing jobs through his administration's trade policies and loan guarantee program.
The Priorities ad ticks off a host of foreign countries as footage rolls of delegates entering an Olympic stadium.
"India, which also gained jobs thanks to Romney, an outsourcing pioneer. And Burma, where Romney had the uniforms made for the 2002 games," the announcer says, before moving on to countries that are regarded as offshore tax havens.
"We know the Swiss have a special place in Mitt Romney's wallet – er – heart," the announcer says. "He kept millions in Swiss banks – those Swiss sure know how to keep a secret. Speaking of secrets, there's Bermuda. Home to a secretive corporation set up by Romney. No one knows why. And Romney won’t tell. And the Cayman Islands. Where Romney keeps millions to avoid U.S. taxes."
The ad concludes: "You gotta say this about Mitt Romney. He sure knows how to go for the gold - for himself."
Democrats have also used this line of attack on Romney in the past, claiming the presumptive GOP nominee isn't being transparent enough in only disclosing two years of personal income tax information. Romney has released his income tax return from 2010, and has vowed to release his 2011 return when his accountant completes it. He did release an estimate of his 2011 taxes.
Romney's campaign says that level of disclosure is beyond what is legally required of presidential candidates, and is plenty of information for voters to decide between Romney and Obama.