Mike Bloomberg's campaign chief has said Donald Trump is winning the 2020 Presidential Election due to six key swing states.

It comes just two days after the former mayor of New York City launched his bid for the White House.

Kevin Sheekey claimed the contest was about voters in Wisconsin, Michigan, Pennsylvania, North Carolina, Florida and Arizona.

Kevin Sheekey (pictured in Hong Kong in April) claimed the contest was about voters in Wisconsin, Michigan, Pennsylvania, North Carolina, Florida and Arizona

He said yesterday: 'That's the whole general election. And right now Donald Trump (pictured) is winning, he is winning that election'

He told CNN yesterday: 'That's the whole general election. And right now Donald Trump is winning, he is winning that election.

'It's very tough for people who don't live in New York or California to understand that, but that is what's happening.'

The 53-year-old businessman added: 'Mike is getting in this race because he thinks that Donald Trump is an existential crisis and he thinks he's on a path to victory and he's getting in to alter that dynamic.'

Mr Sheekey, a 53-year-old businessman, added: 'Mike (pictured) is getting in this race because he thinks that Donald Trump is an existential crisis and he thinks he's on a path to victory and he's getting in to alter that dynamic'

Mr Sheekey cited two polls from early November where the President was leading in some of the six states.

They showed Elizabeth Warren beating Mr Trump in Arizona, Bernie Sanders winning in three of the states and Joe Biden leading in four of them.

But all the Democratic candidates fell short of the incumbent in North Carolina.

Mr Sheekey also defended Mr Bloomberg's decision to miss the early nominating states as he brought the Democratic primary field back up to 19 candidates.

He said 'You can say it's never been done before, but you also have to say no one's ever tried it before,' adding that the tactic was to focus on a 'national political campaign'.

Mr Bloomberg, 77, a former Republican, announced his candidacy on Sunday in a written statement posted on a campaign website describing himself as uniquely positioned to defeat Mr Trump.

He will quickly follow with a massive advertising campaign blanketing airways in key primary states across the US.

'I'm running for president to defeat Donald Trump and rebuild America,' Bloomberg wrote.

'We cannot afford four more years of President Trump's reckless and unethical actions,' he continued.

'He represents an existential threat to our country and our values. If he wins another term in office, we may never recover from the damage.'

Bloomberg's entrance comes just ten weeks before primary voting begins, an unorthodox move that reflects anxiety within the Democratic Party about the strength of its current candidates.

As a centrist with deep ties to Wall Street, Bloomberg is expected to struggle among the party's energized progressive base.

He became a Democrat only last year.

Yet his tremendous resources and moderate profile could be appealing in a primary contest that has become, above all, a quest to find the person best-positioned to deny Trump a second term next November.

Forbes ranked Bloomberg as the 11th-richest person in the world last year with a net worth of roughly $50billion.

Trump, by contrast, was ranked 259th with a net worth of just over $3billion.

Bloomberg has vowed to spend at least $150million of his fortune on various pieces of a 2020 campaign, including more than $100million for internet ads attacking Trump, between $15million and $20million on a voter registration drive largely targeting minority voters, and more than $30 million on an initial round of television ads.

He did not say how much he would be willing to spend overall on his presidential ambitions, but senior adviser Howard Wolfson said: 'Whatever it takes to defeat Donald Trump.'