Story highlights Ben Carson may lead some national polls, but he has fallen to fourth place in New Hampshire, according to a new survey Wednesday

Carson only earns 9% in the latest Fox News poll of the GOP field, only a third of the support earned by Donald Trump

Washington (CNN) Ben Carson may lead the GOP presidential field in some national polls, but he has fallen to fourth place in New Hampshire, according to a survey released Wednesday.

Carson only earns 9% in the latest Fox News poll -- a third of the support earned by the other national front-runner, Donald Trump, who laps the field with 27%. The Fox survey mirrored a WBUR poll of the Granite State released earlier on Wednesday, which also showed Trump with a large lead over the rest of the field there.

Fox News' poll shows Marco Rubio in second place, with 13% support, and Ted Cruz in third with 11%.

Following Carson are three candidates who have focused overwhelmingly on New Hampshire, which tends to support more moderate Republicans: Jeb Bush, John Kasich, and Chris Christie, who win 9%, 7% and 6%, respectively.

Rand Paul and Carly Fiorina earn 3% support. No other Republicans earns more than 1%.

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