Unpopular GOP candidates mulling when to pack it in

New Hampshire Secretary of State Bill Gardner watches at left as Republican presidential candidate, New Jersey Gov. Chris Christie, with wife Mary Pat, gets ready to sign papers to be on the nation's earliest presidential primary ballot, Friday, Nov. 6, 2015, at The Secretary of State's office in Concord, N.H. (AP Photo/Jim Cole)WASHINGTON (AP) — For months, Republican presidential candidates with dwindling bank accounts and negligible support in polls have been finding reasons to stay in the 2016 race.

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