Trump believes the Democratic race is down to just Bernie, Biden, Beto and Buttigieg

Donald Trump singled out four of his challengers for ridicule on Tuesday, mocking Joe Biden, Pete Buttigieg, Beto O’Rourke and Bernie Sanders and predicting one of them will win the 2020 Democratic nomination.

‘Boy, you got some beauties there!’ he said during a speech in Louisiana about energy infrastructure. ‘Three hundred and fifty million people and that’s the best we can do?’

‘It’s going to be one of these people,’ he said. So far 23 different Democratic White House hopefuls have declared their candidacies.

He poked fun at O’Rourke for quickly losing what a month ago looked like juggernaut momentum. He jeered Sanders as a lunatic and sneered at Biden’s low-intensity campaign style.

President Donald Trump said Tuesday that his Democratic challenger will either Be Joe Biden, Pete Buttigieg, Beto O’Rourke or Bernie Sanders – and mocked them all during a speech in Louisiana

Trump said Joe Biden has lost his energy and doesn't resemble the vice president he once was

Trump said Joe Biden has lost his energy and doesn’t resemble the vice president he once was

The president called Bernie Sanders 'crazy' and said that while he is more energetic than Biden, his verve would result in massive job losses in the energy sector

The president called Bernie Sanders ‘crazy’ and said that while he is more energetic than Biden, his verve would result in massive job losses in the energy sector

And he scoffed at Buttigieg’s name, hinting that he believes the South Bend, Indiana mayor is too lightweight to warrant real criticism.

‘I think we’re going to win it big,’ he said, forecasting a second term in the White House.

‘I’m looking at the competition. You sort of dream about competition like that, but who knows?’

‘I got “Boot-edge-edge.” I got them all,’ he said.

Kicking O’Rourke when he’s down, he dumped on the former Texas congressman whose star has plummeted so fast that he appeared Monday in the second half of Rachel Maddow’s MSNBC program.

The president lashed out at former Texas rep. Beto O’Rourke, saying his campaign reboot after a month of plummeting is a bad sign

The president suggested Pete Buttigieg, an Indiana mayor who is the youngest Democrat in the field and would be America's first openly gay president, will be in the mix at the end, but chose to just mock his name

The president suggested Pete Buttigieg, an Indiana mayor who is the youngest Democrat in the field and would be America’s first openly gay president, will be in the mix at the end, but chose to just mock his name

‘What the hell happened? Remember about four weeks ago he said, “I was made for this.” He was made for it! He was made to fall like a rock,’ Trump mocked.

‘Political geniuses, when you have to restart your campaign, history has said that that does not work out well, right?’ he asked.

Trump described himself last week as a ‘young, vibrant man.’ He said Tuesday that Biden, by comparison, has lost a step.

‘I don’t know what the hell happened to Biden,’ he said of the former vice president. ‘What happened to him? I’m looking, I said, “That doesn’t look like the guy I knew!”‘

There are now 23 Democrats running for president, including Tuesday's addition, Gov. Steve Bullock of Montana

There are now 23 Democrats running for president, including Tuesday’s addition, Gov. Steve Bullock of Montana

Trump has derided Sanders, a Vermont senator, as short on marbles in the past, and continued the roasting on Tuesday.

‘You know, Bernie’s crazy! Bernie’s crazy!’ he said, drawing laughs from a hooting audience at a natural gas terminal.

‘But Bernie’s got a lot more energy than Biden, so you never know.’

‘Bernie’s got a lot of energy, but it’s energy to get rid of your jobs,’ he claimed.

‘Not good energy. You don’t like his energy.’

Trump said 'Pocahontas,' his derogatory nickname for Massachusetts Sen. Elizabeth Warren, won't be successful in her bid for the Democratic nomination

Trump said ‘Pocahontas,’ his derogatory nickname for Massachusetts Sen. Elizabeth Warren, won’t be successful in her bid for the Democratic nomination

Louisiana Lt. Gov. Billy Nungesser met Trump  at Chennault International Airport on Tuesday in Lake Charles, wearing socks that are an homage to the president

Louisiana Lt. Gov. Billy Nungesser met Trump  at Chennault International Airport on Tuesday in Lake Charles, wearing socks that are an homage to the president

Trump seemed to rule out the possibility of Elizabeth Warren emerging from the pack of Democrats who now number 23 in all.

‘Pocahontas, I think, is probably out,’ he said, using his derogatory nickname for the Massachusetts senator who is now infamous among Republicans for falsely claiming American Indian heritage.

Trump has in recent months offered a direct attack on socialism, responding to the celebrity status of Sanders and New York Rep. Alexandria Ocasio-Cortez.

Both of those lawmakers describe themselves as democratic socialists, and regularly float policy proposals to match.

‘We do not believe in socialism, okay?’ Trump said Tuesday. ‘Is that alright to say?’

‘If we had socialism here, you’d have nothing standing,’ he said, gesturing to the natural gas terminal’s physical plant.

‘And if it was standing from previous generations, it would be falling down right now.’

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