McCain and Romney battle over who is real conservative

By Claudia Parsons

LONG BEACH, California (Reuters) - Sen. John McCain and self-proclaimed underdog Mitt Romney argued on Monday over who is the real conservative the day before Super Tuesday voting that could crown a presumptive Republican White House nominee.

Battling to stay in the race, Romney made a last-minute dash back from the east coast to California -- a battleground state where he was pinning his hopes on recent polls showing him edging ahead of the Arizona senator.

"One of the reasons I came back to California is that I know that Republicans in California care very deeply about the heart and soul of the Republican party," he said at an evening rally in an aircraft hangar at Long Beach, California.

Romney, a former Massachusetts governor, sought to stir discontent among conservatives who are skeptical about McCain's record of having voted against President George W. Bush's tax cuts and his moderate views on illegal immigration.

"A lot of people said it is going to be a very easy race for Senator McCain. But across the country conservatives have come together and said, 'You know what, we don't want Senator McCain. We want a conservative to be in the White House'," Romney said in Nashville, Tennessee.

McCain ripped Romney at a campaign rally in Hamilton, New Jersey, saying Romney presided over a "big government, mandated health care plan" as governor of Massachusetts.

McCain said he has long favored cutting federal spending and is a strong proponent of facing down the challenge of Islamic extremism -- positions he said are at the heart of conservatism. "So I'm proud of my record in the Senate as a staunch conservative."

McCain has a lead over Romney in many states and has a chance of emerging from the Tuesday nominating contests as the presumptive Republican nominee.