Politics is a serious business and Donald Trump has proven himself grotesquely unfit for office through his flippant, offensive, dangerous and simply wrong comments.

Here summarised in 7 tweets is why he would be the worst US President in history

1. Global warming is fictional

Windmills are destroying every country they touch--- and the energy is unreliable and terrible. http://t.co/wxrkXRsv

— Donald J. Trump (@realDonaldTrump) December 14, 2012

Windmills are the greatest threat in the US to both bald and golden eagles. Media claims fictional ‘global warming’ is worse.

— Donald J. Trump (@realDonaldTrump) September 9, 2014  

The proven effects of global change are a profound challenge for our generation and it is simple unthinkable that a man who doesn't even believe it is exists could be put in charge of the United States Government. 

2. Climate change is a clandestine Chinese conspiracy to attack America's economy

The concept of global warming was created by and for the Chinese in order to make U.S. manufacturing non-competitive.

— Donald J. Trump (@realDonaldTrump) November 6, 2012

 Not only does he not believe climate change exists, he believes it is a Chinese conspiracy. This man who is simply unfit to be President wouldn't be capable of managing relations with the Chinese Government.

3. When he advocated overthrowing President Obama

This election is a total sham and a travesty. We are not a democracy!

— Donald J. Trump (@realDonaldTrump) November 7, 2012

Those are soldiers in nazi uniforms marching in front of the White House, juxtaposed with a giant photo of Trump’s head superimposed on the American flag, alongside the text “WE NEED REAL LEADERSHIP”. 

4. His flagrantly sexist, misogynist and superficial attitude towards women

Did Crooked Hillary help disgusting (check out sex tape and past) Alicia M become a U.S. citizen so she could use her in the debate?

— Donald J. Trump (@realDonaldTrump) September 30, 2016

Trump came under fire for an "unhinged rant" against a former associate that Hillary Clinton had raised in the first debate. Clinton had brought up his "Miss Piggy" comments about her since she allegedly gained weight. Trump responded by calling her disgusting and mentioning an alleged sex tape that doesn't seem to exist to try and publicly disgrace her. All at 3AM in the morning. 

He also had a problem with Megyn Kelly, posting a quote from one of his followers calling her a "bimbo".

5. His offensive reaction to Ebola

President Obama - close down the flights from Ebola infected areas right now, before it is too late! What the hell is wrong with you?

— Donald J. Trump (@realDonaldTrump) October 5, 2014

The U.S. cannot allow EBOLA infected people back. People that go to far away places to help out are great-but must suffer the consequences!

— Donald J. Trump (@realDonaldTrump) August 2, 2014

SHUT. DOWN. EVERYTHING. These are the panic inducing words of a potential commander-in-chief, someone who is supposed to reassure the people and keep things under control.  Oh and by the way - the brave men and women who flew to Ebola stricken regions to help people must "suffer". Yup. In a few months the most powerful world leader could have be someone with an apparent complete lack of basic human empathy or compassion.

6. Racist lies against Muslims

I LIVE IN NEW JERSEY & @realDonaldTrump IS RIGHT: MUSLIMS DID CELEBRATE ON 9/11 HERE! WE SAW IT! https://t.co/1SksZU9qlj

— Donald J. Trump (@realDonaldTrump) November 26, 2015

In late 2015 Trump began tweeting and speaking about how he'd witnessed "thousands and thousands" of muslims celebrating on 9/11. Pulitzer prize winning fact checker Politifact.com ruled that Trump's claims defy "basic logic" and there was a conspicuous lack of visual/video evidence. All they found were "a couple of new articles that described rumours that were either debunked or unproven". Trump went on to win their 2015 "Lie of the Year" title, for this claim and other such as his assertion that the Mexican government sends "the bad ones over" the border into the United States. He further said that they sent the "drug dealers, criminals and rapists" over the border. 

7. He's an unintentional IS recruitment machine and prioritises bellicose rhetoric over actual evidence

When will President Obama issue the words RADICAL ISLAMIC TERRORISM? He can't say it, and unless he will, the problem will not be solved!

— Donald J. Trump (@realDonaldTrump) November 15, 2015

One of Trump's talking points for a while was Obama administration's choice of language, asserting that it is both a sign of weakness and rooted in a desire by the president to be politically correct. After months of Trump's inflammatory and irresponsible rhetoric, Obama slapped him down and explained why his administration made the conscious effort to not use the phrase "Islamic terrorism". The reason being that painting Muslims with a broad brush and associating Islam with terrorism plays directly into the terrorists' hands and helps spread their propaganda that America hates Muslims. 

“Not once has an adviser of mine said, ‘Man, if we really use that phrase, we’re going to turn this whole thing around.’ Not once.” Obama said.

 He also pointed out that Trump's proposals to ban all Muslim immigration was unconstitutional and threatened the very nature of American democracy. He also alluded to the McCarthy era of paranoia about communism.

“We have gone through moments in our history before when we acted out of fear and we came to regret it. We have seen our government mistrust our fellow citizens and it has been a shameful part of our history.

“This was a country founded on religious freedom. We don’t have religious tests here. If we ever abandon those values, we would have betrayed the very things we are trying to protect. I will not let that happen."