Nearly 60 per cent of registered voters in America say they have made up their minds against voting for Donald Trump in 2020, according to a new poll.

The new PBS NewsHour/NPR/Marist Institute poll shows 57 per cent of American voters will not support the president in his bid for a second term, compared to just 30 per cent who say they will definitely do so.

The poll, released on Thursday, finds that supporters of the two major parties are divided on the subject.

While 91 per cent of Democrats say there is no way that Mr Trump will get their vote, just 10 per cent of Republicans say the same. Meanwhile, 62 per cent of registered independent voters say they have made up their mind against supporting the president’s re-election.

Of those who say they will definitely vote for Mr Trump are 69 per cent of Republicans, 50 per cent of Democrats, and just 25 per cent of independent voters.

“The president has had his base and not much else,” Lee Miringoff, the director of the Marist Institute for Public Opinion, told PBS NewsHour.

But the poll — assuming it is accurate — only portrays a fragment of the circumstances that will ultimately impact who is president in February of 2021.

In the 2016 race between Mr Trump and his Democratic challenger Hillary Clinton, just 138 million people cast a ballot, for instance. That represented roughly 58.1 per cent of the voting-age population at the time. Low or high turnout, especially in swing states, could have a significant impact on the are even if high portions of voters in certain areas have already made up their mind.

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