This is a RUSH transcript from "The O'Reilly Factor," May 30, 2012. This copy may not be in its final form and may be updated.

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BILL O'REILLY, FOX NEWS HOST: "Personal Story Segment" tonight, we are pleased to have the junior senator from Florida, Marco Rubio in the studio this evening. He's the author of the upcoming book "An American Son", which will be out in the stores everywhere on June 19th.

All right. So everywhere you go people ask you about the Vice President deal. You know I asked you well, a few months ago we had you on about that. Should I continue to ask you? Is it getting boring now?

SEN. MARCO RUBIO, R-FLA.: No what's -- what the difference is we have a nominee now. So I'm trying to be very respectful of their process on what they're going through.

(CROSSTALK)

O'REILLY: Well they are not going to say anything until the convention because they've got to have something to get people to watch.

RUBIO: Well and that's why he deserves for us to be respectful of that process. So journalists like you are going to ask. But those of us - -

(CROSSTALK)

O'REILLY: Yes you're going to stonewall.

RUBIO: Right.

O'REILLY: Let me give you two things that two guys have said about you on this program. You know Charles Krauthammer?

RUBIO: Yes.

O'REILLY: Ok, he's a smart guy, right? Well, Krauthammer says if you are asked that you have to accept. You have to because if you didn't, you would be letting your country down. That's Krauthammer. Krauthammer predicts that if you are asked you will accept. What do you think about that point of view?

RUBIO: Well, I just tell anyone -- I'm not even talking about the whole process. And I respect him very much and what he said to you.

(CROSSTALK)

O'REILLY: But would it be disrespectful if you for say family reasons, personal reasons, would you consider that to be -- would it trouble you that your country calls and you can't answer the call?

RUBIO: Well, I hate -- being in the No Spin Zone. But I'll just say to you that I really don't want -- I've really tried not to even comment on the whole process. I think, I really believe Mitt Romney deserves to have a process where the rest of us sat here and just talking about it and giving our opinions or by process of elimination making his choices. ...

O'REILLY: All right, but answer me this, if you would. That has to be a consideration for everybody. Everybody who is in elective office, if their country calls and asks, right? You have to.

RUBIO: Look, I've never been in that position. All I -- obviously I'm being very respectful of the process they're going through and trying not comment on it. I will say this though, Mitt Romney is someone who has made a lot of good decisions in his life consistently. It's a record of good decisions in his personal life, his business life, his political life, and I think he's going to make a great decision.

O'REILLY: Yes, you're a big supporter of his, sure.

Now Dennis Miller who is coming up behind you in a couple of segments. He basically says he's going to hate you if you're asked and you turn it down. He's going to be mad at you, he's going to -- there's going to be anger, personal anger for the same reason Krauthammer said. I don't want you to comment on that but that's what Miller says.

All right, now Florida is a key state in this election. If -- if President Obama wins Florida, I think he's going to win the election. The gay marriage thing seems to have hurt him in Florida. Do you believe that? Is that an issue down there?

RUBIO: Well we have -- well, it's not the most important issue but it's an important issue to people. We have a constitutional amendment in Florida that defines marriage as the union between one man and one woman as a very particular institution.

I think a lot of Floridians believe that. And so I think that you'll see reflected in the polling and some of --

(CROSSTALK)

O'REILLY: How about in the Hispanic community and the Cuban community where you come from? Is that?

RUBIO: Yes I don't think that's the issue that's going to decide the election. I think if you ask people what they --

(CROSSTALK)

O'REILLY: But is there passion behind that issue?

RUBIO: I think so. But certainly -- but I don't want to overstate that it's going to be one that decides the election. It's an important issue. And if you ask people they will tell you they believe --

(CROSSTALK)

O'REILLY: For Hispanic Americans.

RUBIO: I think so, yes. And again I don't speak for all --

(CROSSTALK)

O'REILLY: Because black Americans, they don't like gay marriage. We saw that in California. We saw that all over the place.

Now in Florida itself it's a split. It's it like four different states, Florida. You've got the north, you've got Dade County which is like a universe unto itself, you've got the central part of the state and the East and West Coast. Is it going to be a dogfight?