A group of Boston counter-protesters yelled 'F**k you racist!' at a Donald Trump supporter as he moved through the demonstrators on Saturday.

The man, who had the Flag of Israel tied around his neck, flaunted his allegiance to Trump with a T-shirt that read 'Proud member of the basket of deplorables'.

He also wore a 'Make America Great Again' hat, which one demonstrator snatched off his head.

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A group of Boston counter-protesters yelled 'F**k you racist!' at a Donald Trump supporter as he moved through the demonstrators on Saturday

The man wore a 'Proud memeber of the basket of deplorables' T-shirt and a 'Make America Great Again' hat, which one demonstrator snatched off his head

Wow.Protestors surround two men in Trump gear and scream profanities, tell them to get the f*^% out of Boston. I asked one why he's here: pic.twitter.com/qRiTjhDXlj — Jessica Weiss (@jessweiss1) August 19, 2017

Video footage captured by Univision reporter Jessica Weiss shows the man walking through the crowd as someone screams, 'get the f**k out of our f*****g town'.

Another man goes up to the Trump supporter and calmly tells him he will be 'donating to everything you stand against'.

As some yelled at the Trump fan, other counter-protesters - including a man wearing a 'Veterans for Peace' shirt - shouted back, 'No violence! No violence!'

Video footage shows the man walking through the crowd as someone screams, 'get the f**k out of our f*****g town'

As some yelled at the Trump fan, other counter-protesters - including a man wearing a 'Veterans for Peace' shirt (pictured) - shouted back, 'No violence! No violence!'

When Weiss asked the man why he was in Boston for the 'free speech rally', he replied: 'You shouldn't be afraid to go outside and say you're conservative'.

'I want to show that people shouldn't be afraid to voice their other views and voice their opinions,' he added.

Tens of thousands of demonstrators chanting anti-Nazi slogans upstaged the rally a week after a violent clash rocked Charlottesville, Virginia and reverberated across the country after one woman was killed and 19 others were injured.

Counter-protesters marched through the city on Saturday to historic Boston Common, where conservatives had planned to deliver a series of speeches but soon left.

An aerial view shows how 40,000 anti-fascist protesters vastly outnumbered a few dozen right-wing attendees at a 'free speech' rally in Boston on Saturday

Around 1pm, the rally attendees cut the event short and were escorted by police away from the park. They were completely outnumbered by those who turned up to drown out the event

Boston police estimated that nearly 40,000 demonstrators total at the rally.

'99.9 percent of the people here were here for the right reason, and that is to fight bigotry and hate,' said Boston Police commissioner William Evans.

Counterprotesters chanted slogans, and waved signs that said: 'Make Nazis Afraid Again,' ''Love your neighbor,' ''Resist fascism' and 'Hate never made U.S. great.'

Others carried a large banner that read: 'SMASH WHITE SUPREMACY.'

President Donald Trump applauded the people in Boston who he said were 'speaking out' against bigotry and hate - but only after first criticizing the 'anti-police agitators'.

Saturday's showdown in Boston was mostly peaceable and, after demonstrators dispersed, a picnic atmosphere took over with stragglers tossing beach balls, banging on bongo drums, and playing reggae music.