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BY STEVE PEOPLES, Associated Press

WASHINGTON (AP) - Jon Huntsman says the leading Republican presidential candidates, Mitt Romney and Newt Gingrich, are feeding a deficit of trust in politics.

Huntsman, the former Utah governor, is struggling in the polls. But he's talking tough in a speech Thursday at the National Press Club.

Huntsman says Romney will say anything to win. And he suggests Gingrich is a Washington insider who benefited from his political connections.

Huntsman is the latest presidential contender to attack Romney and Gingrich, considered the front-runners in the race for the Republican presidential nomination.

He declines to talk about Gingrich's three marriages, but calls the former House speaker a "lobbyist in chief." Romney, he says, is a "panderer in chief."

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