And, as we very well expected, things were quick to turn ugly.

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Trump V Biden was never going to be a civilized affair, but the scenes that unfolded last night were nothing short of brutal.

Tensions between the candidates have been bubbling for some time now...

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And, on Tuesday night, it seemed that their mutual feelings of resentment finally reached a boiling point.

However, in the aftermath of the explosive debate...

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Trump supporters have come forward with a somewhat outlandish theory as to how the Democratic candidate, Joe Biden, kept up with the president's incessant questioning.

Now, there were many eye-opening moments from the ninety-minute debate.

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For example...

The President was grilled on the newly surfaced allegations regarding his income tax.

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Asked if it was true that he paid just $750 in income tax in 2016, as reported by The New York Times last week, Trump said, without hesitation: "I paid millions of dollars in taxes, of income tax." Biden used this opportunity to ask for evidence of these tax payments, adding that Trump "takes advantage of the tax code."

Trump was also asked to condemn white supremacist groups...

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But instead chose to focus on the left. He said: "Sure I'm willing to do that, but almost everything I see is from the left-wing. I'm willing to do anything. I want to see peace." And, when asked to give this group of people a name, he responded with "Proud Boys." Proud Boys, a neo-Nazi organization, appeared to use Trump's "stand back, stand by" call in a new logo posted on Telegram shortly after the debate.

The President did provide some good news with regards to a coronavirus vaccine, however.

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When Biden pointed out that 200,000 Americans have died during the pandemic as a result of the President's "lack of plan", Trump retaliated by insisting that "millions would have died if Biden was in charge." He then added that the US is "weeks away" from a vaccine, and his administration had done a "great job."

Biden's son, Hunter, was then dragged back into the firing line.

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The President brought up Biden's son, claiming the mayor of Moscow's wife gave him millions of dollars and raising questions over his links with Ukraine. He also mentioned Hunter's drug problems.

Clearly, his words about Hunter hit a nerve with Biden.

"His family we can talk about all night," Biden clapped back, adding that "it's hard to get any word in with this clown - excuse me, this person". The pair also clashed over Biden's now-deceased son, Beau, and his military service.

The insults continued to flow.

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"Everything he's saying here is simply a lie, everybody knows he's a liar," Biden said during an exchange about healthcare. He also called Trump "the worst president this country has ever had."

And, of course, President Trump didn't take them quietly.

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Not to be outdone, Trump got in plenty of digs as well, firing at his opponent: "There's nothing smart about you Joe. Forty-seven years, you've done nothing."

And, as you may have already heard...

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In the first segment of the debate, Biden actually told the president to "shut up."

The pair continued to talk over each other as Wallace tried - unsuccessfully - to keep them in line.

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Wallace asked Biden if he was willing to tell the American people whether he supported either ending the Senate filibuster or adding more justices to the bench. Biden responded by saying he would not take a position on the issue and instead urged people to go out and vote.

But, as Biden was talking...

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Trump repeatedly asked him, "Are you going to pack the court?" "He doesn't want to answer the question," Trump said. "I'm not going to answer the question," Biden responded. "Why won't he answer the question?" Trump said as he continued to talk over his opponent.

Biden, unable to complete his answer, then shut his eyes and said exasperatedly, "Would you shut up, man?"

He then followed up with, "This is so unpresidential," after which Wallace ended the segment.

However, putting Biden's unexpected come-backs to one side...

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Trump supporters have come forward with a rather bizarre theory as to how Biden was actually able to answer the president's questions.

Because God forbid he be able to simply use his brain to answer, right?

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A number of the president's avid supporters took to Twitter to share their outlandish theory...

High-tech contact lenses.

Yep, an alarmingly high number of Trump fans genuinely believe that Biden was wearing state-of-the-art contact lenses that somehow allowed him to cheat his way through the debate.

This is how it works...

Biden's eyes, which are normally blue, were much darker at the debate, so obviously he was wearing lenses that fed a video display system.

There are other theories, too...

Some believe Biden was wearing a mic just under the cuff of his sleeve.

The theories are truly wild...

Or maybe Biden can simply stand up to Trump? How about that for a theory? For more on President Trump, keep scrolling...