Donald Trump charged that Mitt Romney was attacking his conservatism via a new super PAC, saying that the criticism is "only driving my numbers up."
"They are all aiming at me, I guess, and that’s fine," the Republican front-runner
told Greta Van Susteren on Fox News on Wednesday. "And so far, it‘s been only driving my numbers up.
"They should have devoted more time to Mitt Romney and helped him win instead of looking at, you know, taking other people down.
"And now Romney is doing a PAC, because Romney feels badly — because frankly that was an election that he should have won," Trump said.
The group, Our Principles was formed last month by Katie Packer, a former top aide to the former Massachusetts governor. It is not associated with Romney, and the organization has released advertising spots lambasting Trump's conservative credentials.
The group spent $2.5 million on negative ads on Trump in Iowa shortly before last week's caucuses,
The State newspaper in South Carolina reports, and is planning a similar blitz in the Palmetto State.
"Four years ago, they should have won that election easily and they failed. So these people that — these ex-Romney people should have focused more on getting Romney elected instead of doing super PACs," Trump told Van Susteren.