Veteran Republican operative Trey Walker, who helped orchestrate John McCain's 2008 primary win in South Carlina, recently joined the Haley team to help with communications strategy.
"Even polls done by Democrats, for Democrats, show Nikki in the lead," said Godfrey. "We're very comfortable with where the race is."
Both camps say the final three weeks will be an intense battle for independent and undecided voters -- and getting them to turn out.
"It's still an uphill battle for Vince Sheheen in a Republican dominated state in a Republican dominated election," said Winthrop University political scientist Scott Huffmon. "Sheheen really has to continue to make people uncomfortable with Nikki Haley but that negative campaigning can depress turnout which would hurt him too."
The candidates have three more debates before election day, Oct. 19, 25 and 26.