Kentucky Derby champion jockey reacts to controversial win

Flavien Prat speaks out about his victory with Country House after the first-place winner, Maximum Security, was disqualified.
6:05 | 05/06/19

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Transcript for Kentucky Derby champion jockey reacts to controversial win
We begin with the stunning twist in the Kentucky derby. For the first time in the race's 145-year history the horse that crossed the finish line first was disqualified for interference and country house, a 65-1 long shot won. The horse undefeated coming into the race and the clear front-runner actually led the derby from start to finish and we all saw this horse cross the finish line first then pull out your replays and your rule books and we were told 22 minutes later that the horse we saw win the race didn't win the race. Because of a rule violation. One that requires jockeys to essentially hold your horses. Maximum security wins the Kentucky derby! Reporter: Certainly historic and possibly the most controversial Kentucky derby finish of all time. While one horse and his jockey celebrated what they thought was a Kentucky derby win, two of the opposing jockeys were filing objections claiming the winning horse should be disqualified. They disqualified. They did so for the first time in the history of the Kentucky derby, the horse that crossed the line first has been disqualified. Reporter: This is the crucial moment in the final turn watch as maximum security shifts to the right, comes out of his lane and nearly collides with the horse behind him. ESPN's Barry Abrams breaks down the ruling with our Diane Maximum security's rear heels come very close, if not actually clipping the front heels of war of will and so there was clearly interference here. Reporter: Maximum security's jockey says his young horse might have been startled by the huge crowd. The crowd was screaming and he's a baby, you know. Reporter: The drama played out live on television. The crowd was waiting through an agonizing 22-minute review. There was confusion among the jockeys. Many of them on phones with replay officials. All before they finally declared the 65-1 long shot country house as derby champion. Maximum security's trainer later admitted his horse drifted out of its path. It looked like he came out a little bit on the 1 horse. Reporter: But the horse's owner is outraged by the decision threatening legal action and calling it the most egregious disqualification in the history of horse racing and the upset caused a stir on social media claiming the top worldwide trend on Twitter, even president trump chimed in tweeting, only in these days of political correctness could such an overturn occur. The best horse did not win the Kentucky derby, not even close. Now, the only other disqualification like this was in 1968. That horse failed a drug test days later. It wasn't for an on-track distraction. The money, $6.2 million bet directly on maximum security. People lost that money and get this, studding fees for a Kentucky derby winner are huge. So they're missing out on that as well, George. Okay, T.J., thanks very much. We're joined by flavien prat. Have you been able to savor it through all the controversy? Well, it doesn't have the same taste but, yeah, that's fine. And what did you make of president trump that tweet yesterday saying that the best horse did not win the Kentucky derby? Well, it happened to me before, you know, and I wasn't the best horse and my horse or I did something wrong and I get -- I get a dq for that so, you know, it's part of the ruling and you got to accept that. You were one of the two jockeys who filed an objection. Explain to everybody who may not be an expert in horse racing what got maximum security disqualified. Well, what happened is like you say when I made my move around the turn I thought I was pushed out from the inside and so as we cross the finish line and I pull up my horse, I was waiting to see if there was any inquiry because I thought it was a pretty wide movement and nothing happened so, you know, for the best of my horse I decided the steward should take a look at it and another rider did the same as I did and they decided it didn't interfere enough with me but he actually caused a lot of damage with other horses so I think that's why they changed the results. Yeah, that was the decision the stewards made. Derek, do you think what happened there was intentional? No, not at all. I just think -- I believe that the horse may have been spooked by the loud noise from the crowd. He actually was switching leads and he might have just bumped out but there was no intention, negative intention by the rider. Derek, this has been such a controversy after a tough year for horse racing and have seen all those horses dies at Churchill downs, at Santa Anita. You think this ruling will be good for the sport. Well, it shows that the sport is well governed by the racing officials. That they made a very tough decision and in one of the largest and the biggest race in the United States and it shows that we can step up and make digs, tough decisions in races that affect the outcome. Flavien, you rode the longest shot ever to win the Kentucky heading to the preakness? Oh, I don't number I don't I mean, I have no idea as of now. Congratulations again and thanks for joining us. Thank you. Thank you, George. It's not uncommon for this to happen but at the Kentucky derby, that's -- Yes. Very much so.

This transcript has been automatically generated and may not be 100% accurate.

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