HOLLIS, NH — Speaking outside a barn in which Rick Santorum was addressing an overflow crowd at a town meeting, a top Santorum aide says GOP frontrunner Mitt Romney “is starting to come across as a bully.”

Asked whether Santorum fears that Restore Our Future, a pro-Romney super PAC, will run attack ads against Santorum should Santorum continue to surge in the Republican race, senior adviser John Brabender suggested Romney’s attacks might backfire in the future.