Donald Trump appeared at a rally in Las Vegas where he was treated like royalty and delivered a profanity-laden speech that decried politicians, particularly President Barack Obama.

Our leaders are stupid, they are stupid people, he told a 1000-strong crowd at the Treasure Island casino along the Las Vegas Strip. It's just very, very sad.

Blaming the US economic woes on ”weak” leaders like Obama, he bellowed: We have the potential to have a great country and we don't have a great country now. If I run and if I win, we will have a rich country again. And we will have a great country again. ... And we'll be a respected country again.

Commenting on critics who say he has no political experience, Trump retorted I've been dealing with politicians all my f__n' life.”

Trump also boasted that a recent poll showed him with 19 percent support among potential Republican presidential candidates, making him at number one.

Who's No. 1? Trump! he shouted. I do know how to make great deals and this country needs great deals right now. Right now I'm leading in every poll and people are surprised by it. But I think people want tough leadership because our country is going to hell and we need to fix things.

Trump however cautioned that if he ran for President, there is a really good chance that I won't win because of one of these blood-sucking politicians. I'm not interested in protecting none of them unless they pay, he added.

Here are some gems from Trump’s Vegas speech:

On U.S. military involvement overseas:
We build a school, we build a road, they blow up the school, we build another school, we build another road they blow them up, we build again, in the meantime we can't get a f___ing school in Brooklyn.

On pressuring OPEC to reduce oil prices:
We have nobody in Washington that sits back and said, you're not going to raise that f__ing price.”

On Congress’ trade deals with China:
When people are screwing you, you don't give them state dinners, Trump said, suggesting McDonald's instead.

On threatening China with an export tariff:
Listen you mother ---ers, we're going to tax you 25 percent!

On how he forced Obama to reveal his long-form birth certificate:
I accomplished something that nobody else had accomplished. Hilary Clinton tried to get him to do it, Bill Clinton tried to get him to do it, John McCain, who's a wonderful guy, tried to get him to do it. Nobody could get him to do it and he did it because we went after him hard, were tough negotiators like this country needs.

On profiting from wars in oil-rich nations:
When we have a war, we lose thousands of lives, we spend trillions of dollars and then we leave. I say we go in and take their oil.

Trump said he will decide by June 1 if he will actually run for president.

China Barack obama OPEC Barack obama