GOP primaries

HAMPTON FALLS, N.H. — Escalating attacks by rivals have done little to knock Romney off his game, said the former N.H. governor.

Paul said Americans have a healthcare system "where the quality goes down, the cost goes up and everybody is unhappy."

HAMPSTEAD, N.H. — Polling suggests Huntsman is gaining ground in the Granite State.

Of Pennsylvania's 13 GOP House and Senate lawmakers, only one lawmaker has endorsed Santorum.

ROCHESTER N.H. — Slipping in polls and facing repeated attacks from rivals, Romney showed no signs of concern Sunday.

Huntsman is visiting a part of the state close to Boston, where voters are attracted to his centrist message.

"I never asked for a deferment," said Gingrich Sunday in response to Ron Paul's claims he avoided service during Vietnam.

Guinta, the last member of New Hampshire's GOP delegation to endorse, said he expects to make an announcement Sunday afternoon.

CONCORD, N.H. — Romney's rivals launched a Hail Mary effort to undercut him during Sunday's GOP debate in New Hampshire.

Gingrich refused to recant his claims that Romney is lying about ties to a super-PAC running ads in early-voting states.