A Donald Trump supporter who says he was savagely beaten for wearing a Make America Great Again hat has sued a pop-up art gallery for getting his underage attackers drunk before the assault.

Jahangir 'Johnny Woo' Turan, 42, was left with 'brutal injuries' at an 'ABC Angels Club pop-up' event on Canal Street, Manhattan, in July, after wearing the red MAGA hat he'd bought earlier that day at Trump Tower.

He said a 'dangerous, unruly and belligerent group' of 15-18 people carried out the attack after a girl flicked the cap off his head.

Jahangir 'Johnny Woo' Turan, 42, was left with 'brutal injuries' at an 'ABC Angels Club pop-up' event on Canal Street, Manhattan, in July

The gallery owner blames a pop-up art gallery for getting his underage attackers drunk before the assault

As he bent down to retrieve it, the rest of the group allegedly 'started pounding on him', knocking him to the ground and stomping on him. One individual is then said to have grabbed his head and hit it against a pole, according to Turan.

Throughout the assault the purported attackers were apparently chanting 'F*** Trump' and other 'anti-Trump stuff', the art dealer said.

Turan, who owns the David Parker Art Gallery, was left with a fractured eye socket after the horrific attack, he says.

Turan is seeking damages for 'substantial injuries, pain, suffering, and emotional distress'

On Friday, he filed a lawsuit against photographer and fashionista Anna Bloda, one of the organizers of the event, building owners United American Land and gallery Wallplay, according to the New York Post.

He is seeking damages for 'substantial injuries, pain, suffering, and emotional distress'.

He blames all three parties because 'alcohol was served without an appropriate license' at the event and at least one of his attackers was underage.

Turan, from Hoboken, says they are 'directly responsible' for getting his attackers drunk prior to the attack.

The event was a curated skateboard-inspired showcase for a number of labels including Bloda's.

But she denies any involvement with the attack and insists everyone at the event was over 21.

She also says she is a 'broke artist' who has no money to pay him if she loses the lawsuit.

United American Land and Wallplay have not yet responded to requests for comment.