Allies urge Romney to mix it up more in campaign

By CHARLES BABINGTON | December 6, 2011 | 4:11 PM EST

WASHINGTON (AP) — Mitt Romney's above-the-fray campaign style kept him atop the Republican presidential field for months. But it's raising concerns now that Newt Gingrich has moved up to challenge him.

Some Romney supporters say their candidate must mix it up more aggressively to prove he has the moxie to be the nominee.

They say he might have performed better in a much-discussed recent Fox News interview if he had been subjected to tough questioning for months.

Romney agreed Tuesday to appear on a Sunday morning talk show for the first time in nearly two years.