Donald Trump left Glenn Beck with egg on his face Tuesday night during a Nevada Republican caucus when he crashed a speech the talk radio host was giving in support of rival Ted Cruz.

The GOP front-runner walked into the gymnasium at Palo Verde High School in Las Vegas while Beck was singing Cruz's praises.

But as soon as word spread that Trump was there, most of the audience – and all the network TV cameras turned away from Beck and scrambled to chase him down.

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MAKE AMERICA INTERRUPT AGAIN: Donald Trump crashed pro-Ted Cruz speaker Glenn Beck's speech and started one of his own at a Nevada Republican caucus site in Las Vegas on Tuesday night

SCRUM: When Trump entered, most of the caucus-goers scrambled to see him (at upper right) even though Beck was still talking

WHERE DID THEY GO? As Beck was waxing on about Cruz and the U.S. Constitution, he was left hearing crickets

HURRICANE DONALD: Beck looked on as The Donald overshadowed his big moment

'America was great,' Beck was saying, 'not because of a president, but America was great because of two reasons: the Constitution of the United States and that its people were good. We have almost lost our country and our Constitution!'

But that was the last line anyone could hear as chants of 'Trump! Trump! Trump!' rang out alongside loud cheers – in the back of the room, where Trump was holding court.

And a tweeted photo from a Mashable reporter shows a bewildered Beck left listening to crickets as his audience fled to the other side of the gym.

MSNBC, which happened to be broadcasting live from Palo Verde at the moment Trump entered, showed a camera shot from the top of the bleachers as people swarmed from one side of the gym to the other.

'We are going to have hopefully a historic night,' Trump said as someone handed him a microphone and Beck wrapped up with few staying to hear him. 'I appreciate everybody being here. I wanted to be here myself and say a few words.'

The real estate tycoon had said on Twitter that he would show up 'at various caucus sites' through the evening, but he didn't tip his hand and provide any locations.

Trump also appeared at a few Iowa caucus sites to speak on his own behalf. Candy Carson spoke at Palo Verde to support her husband Ben.

PHENOMENON: Trump draws massive crowds wherever he goes

On 'Fox & Friends' Wednesday morning, Trump said he hadn't intended to disrupt Beck's pro-Cruz speech.

'No, I didn’t, but when I walked in I saw that he was on the podium, and there were thousands of people in the room – not too many people listening to him.'

'He’s not a very good guy to listen to, frankly. He's boring,' Trump jabbed.

'Everybody told me the place went crazy' when he entered, Trump explained.

'They all ran away from him, his whole crowd. And he was standing up there talking to nobody, and he steamed out of the room,' he said.

'And I didn’t do it on purpose, but I happened to be there, and we had such – I bet 95 percent of the people in the room, in that particular area, went with us.'