This is a rush transcript from "On the Record," February 19, 2016. This copy may not be in its final form and may be updated.
GRETA VAN SUSTEREN, FOX NEWS HOST: Senator Marco Rubio going into tomorrow's primary with some momentum. Senator Rubio picking up some big South Carolina endorsements - Governor Nikki Haley and Senator Tim Scott, the two South Carolina leaders joining Senator Rubio at a rally today.
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MARCO RUBIO, 2016 GOP PRESIDENTIAL CANDIDATE: We are going to take conservative principles to the people who are living the way I grew up. We are going to take our principles to people who are living the way Tim Scott grew up. We are going to take our principles to the people who are living the way Nikki Haley grew up.
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VAN SUSTEREN: And just a short time ago, we go South Carolina Senator Tim Scott went on the record.
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VAN SUSTEREN: Senator, nice to see you, sir.
SEN. TIM SCOTT: Hi, Greta, how are you doing?
VAN SUSTEREN: I'm very well on top of a beautiful aircraft carrier in your home state, and obviously, very interested in what happens tomorrow. Is your candidate Senator Marco Rubio, is he ready?
SCOTT: I think he's very much ready. He's surging at the right time. Marco momentum is actually happening before our very eyes. The crowds are swelling. The electricity, you can sense it in the room. There is a sense of optimism and hope for the future of this country and it's been driven by the message of Marco Rubio and I'm excited about what's going to happen tomorrow here at home.
VAN SUSTEREN: Is third place a win for him? Because he's, sir, neck and neck in the polls with Senator Ted Cruz, but if he comes in third place, is that still a win for him?
SCOTT: I think it's amazing that he's moved from a distant third place to a very neck-and-neck race for Ted Cruz for second. I think that we could see a real strong push at the end that might push him into second place, but while we knew coming in to South Carolina, he needed a top three finish. I think he will get that and perhaps with any luck at all with strong surge in voter participation for tomorrow or even better in the third place.
VAN SUSTEREN: Well, no one knows the South Carolina voters like you, so why isn't he in first place? Why isn't your candidate in number one down here?
SCOTT: Well, there's no doubt that Trump has done a very good job of harnessing the anger and frustration. Marco has taken a very methodical approach looking at the long game. We know that this is a cross-country run for - for Marco and all the candidates. I think he has consistently been improving. He learned a lot from New Hampshire. He's applied it (ph) to South Carolina. Marco momentum is back. We were looking for a strong finish tomorrow and that will carry us into the first race in Nevada next Tuesday and then into the March madness so the SEC Primaries.
VAN SUSTEREN: Senator, we're so close to those polls opening down here. Do you think there are still people here in this state who are undecided? Are you running into those people?
SCOTT: We are running into those people and the good news is according to the latest polling information, the undecided voters are breaking towards Marco in a significant fashion. We heard there at least about 7 to 10 percent of voters that were still undecided. That is a significant number especially when you consider the fact that we're looking at record turnouts tomorrow. So, that could be a significant push in the right direction if we're able to achieve the numbers that we think we'll achieve tomorrow.
VAN SUSTEREN: Senator, thanks very much.
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