The Mike Bloomberg Family Foundation has poured millions of dollars into projects in cities where the presidential candidate is now campaigning for votes.

One of the programs, the Bloomberg American Cities Climate Challenge, gave a total of $70million to 25 cities to reduce their carbon emissions, including Los Angeles, Philadelphia, Chicago and Atlanta.

The cities also happen to be in key Democratic primary target states.

The Mike Bloomberg Family Foundation has poured millions of dollars into projects in cities where the presidential candidate is now campaigning for votes

According to a review of the foundation's 2017 and 2018 tax filings by The New York Post, it also spent millions of dollars in art grants to many target cities.

The foundation also gave Baltimore, the home of Bloomberg's alma mater Johns Hopkins University, $5million for public safety, while Boston, which votes in next year's Super Tuesday primary, was also a recipient of the funds.

He has donated $32million to the education center at the Museum of Science in Boston in the past two years.

According to the review, there are signs of Bloomberg's money everywhere he goes as the businessman fights to become president.

Rivals Bernie Sanders and Elizabeth Warren have accused Bloomberg of trying to 'buy' the election.

But the former mayor of New York made many of the donations before he announced his presidential bid.

Rivals Bernie Sanders and Elizabeth Warren have accused Bloomberg of trying to 'buy' the election

He has given a total of $8billion to issues including education, health, the arts, the environment and public safety.

And according to political consultant Mike Morey, who advises former New York City Council Speaker Christine Quinn and worked for Chuck Schumer, Bloomberg's donations to worthy causes give him an edge over the other candidates.

He said: 'Bloomberg has invested in a lot of progressive causes. That gives him a distinct advantage because he's putting his money where his mouth is on issues that prime Democratic voters care about.

'It's certainly going to make people pay attention to him and even support him.'

Bloomberg spokesman Stu Loeser said: 'When you are one of the most generous givers in America year after year after year like Mike Bloomberg is, you get to know and work with a lot of amazing people who are doing fantastic things for people.'

Bloomberg's wealth, estimated to be a staggering $55billion, has allowed him to buy one of the largest campaign staff rosters and spend more money on adverts than all the top-polling Democrats combined.

Since his campaign launch on November 24, Bloomberg has spent or reserved about $60million in television and radio ads, according to The Washington Post.

He is also spending $170,000 a day on Facebook ads, two and a half times the level of Donald Trump's reelection campaign, and he has also bought $4.6million of Google ads.