A super PAC supporting former House speaker Newt Gingrich has made a $6 million ad buy in Florida, underscoring the new dynamics of the presidential race.

A new ad from the group claims former Massachusett governor Mitt Romney “invented government-run health-care.” It paints the Republican candidate as an ally of Barack Obama through clever use of old clips. The spot repeats one 2002 clip in which Romney says “my views are progressive” three times.

Up until this week, Romney and his supporters were alone in the Florida ad game. Restore Our Future, a pro-Romney super PAC, just bought $4.5 million of time in the Sunshine State on top of a previous $3.2 million buy.

But the Gingrich-backing super PAC Winning Our Future just got a $5 million cash infusion from the wife of Las Vegas casino mogul Sheldon Adelson. Adelson himself gave the group $5 million on Jan. 6th. The once-underfunded candidate is now able to compete with Romney not just in debates but on the airwaves, even though Gingrich’s actual campaign still lags behind Romney in cash.

“We will run something new, something old, something big and something bold,” Winning Our Future spokesman Rick Tyler told The Fix Monday.

Romney himself came out with an ad Monday mocking Gingrich’s claim to be a “historian” when he consulted for mortgage giant Freddie Mac.

In response to the Gingrich super PAC ad, Romney spokesman Ryan Williams had this to say: “Speaker Gingrich has demonstrated that he can’t tell the truth about his unprecedented ethics reprimand, his resignation in disgrace at the hands of his own party, and his work as a highly paid Washington lobbyist for Freddie Mac. It’s not a surprise that his allies can’t tell the truth either.”