With Glenn off radio for a month, last night's debate was a great way for him to see some of the GOP candidates in action. Let's face it, Glenn has made it very clear that certain candidates (*cough* Ted Cruz *cough*) are strong front runners. That's why Glenn's revelation of who he thought won the debate was so surprising.

Before Thursday's debate, Glenn considered Senator Marco Rubio kind of a "question mark" as a candidate.

"You're not really sure who he is. You haven't seen a lot of him," Glenn said on radio Friday.

Glenn went on to declare Rubio not only the winner of the debate, but also someone he might consider supporting.

"I think he really truly believes things. Because of what he said last night and what he said on CNN this morning," Glenn said, referencing Rubio's interview with Chris Cuomo talking about his stance on abortion.

Watch the video or read the full transcript of the segment below.

Below is a rush transcript of this segment, it may contain errors.

GLENN: I said earlier that the big -- the big winner from last night, I thought, because he was so likable and he was so strong on things, that he went up in my head on placement. I didn't change who -- I'm for Ted Cruz.

PAT: Uh-huh.

GLENN: But I'm looking -- okay, if Ted Cruz doesn't get the nod, who can get it. All right. Number two for me is Rand Paul. Now, Marco Rubio was one of those guys who I was like, okay, if Ted doesn't get it. Who else is there?

GLENN: Marco Rubio moved up a lot last night for me. One of the things he said -- and I think Stu is right on this. Stu said earlier today, I think he's not a guy who is playing politics. I think he really truly believes things. Because of what he said last night and what he said on CNN this morning.

This is not going to be popular in the popular -- in the general election. And it's really kind of -- I don't know if it's that popular with all of the Republicans as well.

PAT: He's not worried about that though.

GLENN: I know that.

PAT: Like you were just saying, this is his position. He's proud of his position. He's not ashamed of it in any way. And he defends it really well.

GLENN: Here he is this morning on CNN with Chris Cuomo talking about his stance on abortion.

MARCO: Science has decided when it's human life.

CHRIS: Science has not decided it's at conception.

MARCO: Let me correct you. Science has -- absolutely it has. Science has concluded absolutely it has. What else can it be? It cannot turn into an animal. It can't turn into a donkey. The only thing that can become is a human being.

(cross-talk)

CHRIS: Look, of course, I understand the logic, but it's a little too simple.

MARCO: It's a human life. It cannot be anything else.

CHRIS: Senator, I understand that. But that's oversimplifying it a little bit.

(cross-talk)

GLENN: Stop. Stop. Stop. He's exactly right.

PAT: Oh, he's crushing Cuomo here.

GLENN: There's nothing else it can be. So when does life begin? When does it become a human? It is at the moment of conception. Because there's nothing else -- it won't grow into a shoe. It won't grow into a tumor. It's a child, period.

CHRIS: -- this is a presented argument of science. In having a DNA map, so does a plant. It's about when it becomes a human being. I'm not saying what I think in answer to that question. That's not my position. But don't you think if you want to be a leader of the future, that's a question that deserves an answer that is definitive beyond your faith. When does life begin? None of you are calling for any type of panel for conception.

MARCO: At conception. At conception.

CHRIS: That's your faith. That's your faith. That's not science.

MARCO: No, it isn't.

CHRIS: It is not definitive science.

MARCO: It absolutely is.

CHRIS: I'll have scientists all morning from all walks of life who will say, we cannot say it is definitely human life at conception.

PAT: What?

GLENN: Stop. Stop.

PAT: What else could it be? I want one scientist who will tell you it's not human life. One -- I want one. Because I would love to have the argument with that scientist.

GLENN: What else could it be?

PAT: What could it be? What could it be?

STU: Never anything else.

GLENN: He says, well, it has a DNA map. So does a plant. Yes, of a plant.

If I took the DNA from a tree and I said is that a tree? You would look at the DNA coding and you would go, that's a tree.

STU: Right. Yeah, it's plant life. And this is human life.

GLENN: Right. When there's --

PAT: If you take a seed and plant it, like you take a seed of a tree and you plant it, well, I don't know that that's a tree. Prove that's a tree.

GLENN: Give me some time. It will sprout very soon. And if you want to look at it scientifically, you could take the DNA and say, yes, that is an oak tree.

PAT: Yeah.

GLENN: It's just a very young oak tree. It is the seed of an oak tree. But it is the oak tree. It won't grow into anything else.

STU: This starts after about three minutes of this, by the way. It goes on and on and on.

GLENN: By the way, Chris Cuomo, what are they looking for in space? What are they looking for in space? Life.

STU: The signs of it.

GLENN: The conditions that could create life. If we find bacteria on Mars, they will declare it life.

STU: They sure will. They sure will.

GLENN: So how do you say that bacteria on Mars is life, but the baby inside is not?

STU: Is not. Yeah. That's incomprehensible.

PAT: That's a good argument.

STU: And Rubio in a tough position. In a very hostile interview, sits there and defends this over and over again.

PAT: He's fine with it.

STU: He's fine with it. He believes it. He's confident. I got the sense listening to this interview and kind of what happened in the debate last night, that if he winds up losing because of this, he's totally fine with it. Fine.

GLENN: He is. I met with him on vacation, and we have to have him on the show and spend some time with him. I met with him on vacation. He is that guy.

JEFFY: Yep.

GLENN: He just believes what he believes, and he's willing to say what he believes. And if he loses, that's fine. I got that feeling from him.

JEFFY: That's what got him in office in Florida as a senator. And before that. But as a senator for sure.

GLENN: Yeah.