Republican Rep. Frank Guinta (N.H.) said Sunday that he expected to make an endorsement in the GOP presidential contest “later on this afternoon” and said polls showed the race “has tightened.”

Guinta, the last member of the New Hampshire Republican delegation to not make back a candidate said he had attended “the last two debates” to further study the candidates but gave no indication of who would receive his support.

“I think we’ve got a field of good quality candidates,” he said during an interview on Fox News.

Guinta said his primary motivation would be “nominating someone who can defeat President Obama” and that he was looking for a candidate with the “vibrancy” to take up the fight against the president in the general election.

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