To be sure, Restore Our Future has been making some of the more long-shot bets in recent weeks.
Romney's campaign has spent about $4m in advertising in Florida, while his Super Pac, Restore Our Future, has spent an estimated $5m.
The super PAC backing Mr. Romney in the Republican primary, Restore Our Future, has raised $51.9 million, and plans to raise twice that by November.
The super PAC supporting Mr. Romney, Restore Our Future, has also bought ads that are both aimed at specific audiences and very broadly.
According to someone who tracks Republican media spending, Restore Our Future has committed just over $470,000 for commercials starting Tuesday and set to run through Feb. 20.
(A super PAC supporting Mr. Gingrich, Winning Our Future, has received at least $10 million from a wealthy casino owner, Sheldon Adelson).
The Super PAC, Winning Our Future, has put TV ads all over the airwaves and even bought space for a half-hour anti-Romney documentary that helped give Gingrich his victory in South Carolina.
The relationship between Ailes, who now steers the most powerful conservative television news empire in the country, and McCarthy, who is one of three directors of Restore Our Future, has been fraught in the past.
The big dog in the effort to drive up Obama's negative job approval ratings, the pro-Romney super PAC Restore Our Future, has invested $82.5 million in independent expenditures, mostly for television ads.
The super PAC, Restore Our Future, has now raised about $150 million during the 2012 cycle, including money it spent to help Mr. Romney win the Republican presidential nomination.
But the super PAC, Winning Our Future, has so far spent much less than the $6 million it said it was committing to a gigantic media buy in Florida.
