Nikki Haley is cutting into Donald Trump's lead in a crucial early voting state. Will it be enough?

Support for Republican presidential candidate and former South Carolina Gov. Nikki Haley is surging in New Hampshire a month from the state’s first-in-the-nation presidential primary. 

Almost a third of Granite State voters likely to cast a ballot in New Hampshire's Republican primary named Haley as their preferred candidate in a Saint Anselm College poll released this week.

Haley has doubled her support in the state since September, according to Saint Anselm’s findings, and she is ten percentage points ahead of where she was in a November CNN/University of New Hampshire survey.