Struggling to maintain his frontrunner status, Republican presidential candidate Mitt Romney is using his fundraising prowess to try to boost his image. A super PAC supporting Romney is going on the air with ads in eight states.

The Restore our Future super PAC is spending $1.5 million in advertising in states that will hold primaries in February and March. The new wave of spending could serve to combat the growing popularity of former Pennsylvania Senator Rick Santorum, who is now running head to head with Romney in national polls, propelled by support from conservative and Tea Party voters. Restore our Future spokeswoman Brittany Gross would not say which ads would air in any of the states, and whether they would attack Santorum. The super PAC has so far been mostly attacking former House Speaker Newt Gingrich, who previously seemed to be Romney’s most formidable opponent.