On Tuesday morning, Donald Trump made his first appearance in front of the United Nations General Assembly. Keeping with typical Trump-style rhetoric, the president mocked and trolled his political opponents, including North Korean leader Kim Jong-un.

Trump at the U.N.

When Donald Trump was running for president, one of the biggest criticisms people had was over his tone and style. Often reckless, the former host of "The Apprentice" made headlines on an almost daily basis by mocking his political opponents, often giving them his own creative nicknames.

In the GOP primary, Trump would go on to label former Florida Gov. Jeb Bush as "low energy," Florida Sen. Marco Rubio as "Little Marco," and Texas Sen. Ted Cruz as "Lyin' Ted." In the general election, Trump took his attacks even further by referring to Democratic nominee Hillary Clinton as "Crooked Hillary." The majority of the mainstream media and critics blasted the billionaire real estate mogul, calling Trump out for his unprofessional nature. Fast forward to present day and Trump hasn't slowed down one bit, amping up his targeting on North Korean leader Kim Jong-un, calling him "Rocket Man" on Twitter for his recent use of testing nuclear bombs. As reported by NBC News on September 19, Trump continued his attack at the United Nations.

While speaking in front of the United Nations General Assembly on Tuesday morning, Donald Trump doubled down on his previous comments, putting focus on his political enemies and rival nations, including North Korea and their leader.

"If forced to defend itself or its allies, we will have no choice but to totally destroy North Korea," Trump said in an apparent threat of war. "Rocket Man is on a suicide mission for himself and his regime," Trump added.

"The United States is ready, willing and able," Donald Trump continued.

"This is what the United Nations is all about...lets see how they do," he noted, before personally thanking China and Russia for their help in implementing sanctions against North Korea.

Twitter reacts

Within minutes of Donald Trump's remarks about North Korea, critics on social media didn't hold back. "How many lies have you counted in Trump's #UNGA speech so far? I have stopped counting at 8 big ones, but there are many more," Terrel J. Starr tweeted.

"This is no longer a speech by President Trump, this a roast beyond roasts," one Twitter user added.

"U.N. General Assembly members are smirking at this fool as he airs his grievances like a child," another tweet noted.

"OMG, cringing.

@realDonaldTrump you're speaking at the UN not one of you r "w/supremacist" rallies. So embarrassing," an additional Twitter user posted. "not sure what Elton John has to do with North Korea," a tweet mockingly said in reference to Trump's "Rocket Man" remark. As the backlash continued, it showed that critics of the president were not pleased with his speech to the United Nations.