Trump assassination attempt victim James Copenhaver, 74, is pictured as he continues to recover in hospital

One of the men fighting for his life following the assassination attempt on former president Donald Trump has been pictured.

James Copenhaver, 74, was critically wounded at the Pennsylvania rally on Saturday but is in stable condition at Allegheny General Hospital in Pittsburgh.

The Moon Township resident is a registered Democrat, according to public records.

He is married and has two sons - and often shares images on Facebook with his grandkids.

According to his LinkedIn, he is retired and used to work at Pennsylvania Liquor Control Board.

James Copenhaver, 74, (in blue) was critically wounded at the Pennsylvania rally on Saturday but is in stable condition at Allegheny General Hospital in Pittsburgh

He is married and has two sons - and often shares images on Facebook with his grandkids

Despite being a registered Democrat, Copenhaver shared several pro-Trump posts on his social media over the last months.

David Dutch, 57, was also critically injured at the rally and remains hospitalized.

Meanwhile former fire chief from the area, Corey Comperatore was killed at the event.

Pennsylvania’s governor said Comperatore, 50, died a hero by diving onto his family to protect them.

In the wake of the shooting that killed one spectator on Saturday, investigators were hunting for any clues about what may have drove Thomas Matthew Crooks, 20, to carry out the shocking attack.

Copenhaver is a registered Democrat

Republican presidential candidate former President Donald Trump gestures as he is surrounded by U.S. Secret Service agents as he is taken from the stage 

Thomas Matthew Crooks

The FBI said they were investigating it as a potential act of domestic terrorism , but the absence of a clear ideological motive by the man shot dead by the Secret Service led conspiracy theories to flourish.

Officials said they believe Crooks, who had bomb-making materials in the car he drove to the rally, acted alone.

Investigators have found no threatening comments on social media accounts or ideological positions that could help explain what led him to target Trump .

Trump said on social media the upper part of his right ear was pierced in the shooting.

But advisers said he was 'great spirits' ahead of his arrival Sunday in Milwaukee for the Republican National Convention.

Former fire chief from the area, Corey Comperatore was killed at the event

Trump's would-be assassin purchased 50 rounds of ammunition just hours before the shooting, according to bombshell reports.

The Secret Service also did not sweep the roof where gunman  Crooks opened fire at the former president.

The horrifying new developments reported by CNN come as the Secret Service faces mounting questions over how the 20-year-old managed to get just 130 yards from where Trump was speaking in Butler, PA.

Crooks shot Trump in the ear with an AR-style rifle his father purchased legally.