The Republican elector from Texas who refuses to cast his vote for Donald Trump at the Electoral College wrongly claimed to be a first responder during the September 11 attacks.

Chris Suprun, a Texas elector, said he was one of the first on scene after a third plane flew into the Pentagon on 9/11.

But in fact he was not employed as a firefighter at the Virginia department he often credits until a month after the attacks, according to an investigation by WFAA.

The fire department did not even attend the Pentagon on 9/11.

Suprun portrayed himself as a heroic firefighter in a widely-shared editorial this month for The New York Times, in which he declared he would not be voting for Trump, calling him unqualified, unfit and 'dismissive' of his own conflicts of interest.

The 42-year-old, from Dallas, is the sole Republican to publicly announce his ballot would not be cast for the president-elect.

He also co-signed a letter with nine Democratic electors which has been widely described as 'bipartisan' calling for briefings before the college voted from intelligence agencies on claims Russia hacked Hillary Clinton's emails in an attempt to tip the election in Trump's favor.

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Republican elector Chris Suprun, 42, who says he was a first responding firefighter during 9/11, made most of his story up, according to an investigation into his history. The Dallas, Texas, resident, portrayed himself as a heroic firefighter in an editorial this month for The New York Times about not voting for Trump

Suprun is just one of 38 electors in the Lone Star state, where Trump won by more than nine points.

The faithless elector detailed his criticism of Trump in the Times, writing: 'Fifteen years ago, as a firefighter, I was part of the response to the Sept. 11 attacks against our nation. That attack and this year's election may seem unrelated, but for me the relationship becomes clearer every day.'

Suprun claimed to be a first responder with the Manassas Park, Virginia, fire department and has made at least two appearances at Major League Baseball games where he was introduced as a 9/11 veteran and threw out the first pitch.

He also claims to have founded the nonprofit Never Forget, and says he is a licensed paramedic.

But a first responder who knows Suprun told WFAA a different story.

The responder, who spoke under anonymity, said: 'He claimed to be a first responder with the Manassas Park [Virginia] Fire Department on September 11, 2001 and personally told us stories "I was fighting fire that day at the Pentagon".

'No, I was on a medic unit that day at the Pentagon and you make a phone call to Manassas Park and you find out that he wasn't even employed there until October 2001.'

The City of Manassas Park confirmed that Suprun was hired on October 10, 2001, a month after the September 11 attacks.

The city's fire chief told WFAA that the department never even responded to the Pentagon or other 9/11 sites.

'It's no different than stolen valor for the military; dressing up and saying "Hey, I earned a Purple Heart" when you weren't even in combat,' the first responder told WFAA. 'There's a big difference between shopping at Old Navy and being a Navy SEAL.'

In his editorial, Suprun credits former President George W Bush for leading the nation through 9/11 in his New York Times op-ed.

Suprun is the sole Republican to publicly announce his ballot would not be cast for the president-elect

On December 19, the Electoral College will cast their votes following the election between Hillary Clinton and Donald Trump. Some electors, including Suprun, have come forward to say they will not be voting for President-elect Trump

'George W. Bush is an imperfect man, but he led us through the tragic days following the attacks,' he writes. 'His leadership showed that America was a great nation.

'That was also the last time I remember the nation united. I watch Mr. Trump fail to unite America and drive a wedge between us.

DID NEW YORK TIMES FACT CHECK HIM? Suprun's op-ed in the New York Times said: 'Fifteen years ago, as a firefighter, I was part of the response to the Sept. 11 attacks against our nation.' But it is now clear that claim is untrue. The Times, which prides itself on being the paper of record, has explained that it fact checks op-ed pieces. In 2013, then Op-Ed Editor Trish Hall explained that all contributors whose pieces are accepted get a contract 'laying out some of your responsibilities'. 'We also need all of the material that supports the facts in your story,' she wrote. 'That’s the biggest surprise to some people. Yes, we do fact check. Do we do it perfectly? Of course not. 'Everyone makes mistakes, and when we do we correct them. 'But the facts in a piece must be supported and validated. 'You can have any opinion you would like, but you can’t say that a certain battle began on a certain day if it did not.' DailyMail.com has not received a response to a request to the New York Times to explain what fact-checking they did and what supporting material Suprun supplied. Advertisement

'Mr. Trump goes out of his way to attack the cast of 'Saturday Night Live' for bias. He tweets day and night, but waited two days to offer sympathy to the Ohio State community after an attack there. He does not encourage civil discourse, but chooses to stoke fear and create outrage.

'This is unacceptable. For me, America is that shining city on a hill that Ronald Reagan envisioned. It has problems. It has challenges. These can be met and overcome just as our nation overcame Sept. 11.'

DailyMail.com has reached out to the New York Times to ask if they fact-checked the claims about his biography before publishing his op-ed online and in its print edition.

Other outlets have claimed that he was in lower Manhattan, including DemocracyNow.com and Bustle.com which said he 'was among the first responders to rush into the Twin Towers when terrorists attacked the World Trade Center on Sept. 11'.

It is unclear who provided their information.

He has also offered an entirely different version of events, to Philly.com in 2012, that he was a 'volunteer paramedic at the Dale City fire company in Northern Virginia, and he was teaching emergency medical response at George Washington University'.

The paper said he was preparing to drive to New York when they heard about the Pentagon attack and drove there insread.

'It's not like the movies,' it quoted him as saying.

'People weren't screaming. But you could smell burning Jet A [fuel], burning paper, burning material. . . .'

The paper reported: 'He and his partner were put to immediate use. In a parking lot, they administered basic first aid until 6 that night, then were deployed to a recreation center, where they treated the first responders for six hours more.'

DailyMail.com is reaching out to Dale City authorities. Attempts to reach Suprun have been unsuccessful.

And a deeper look into Suprun's resume shows that his untruths go further than his 9/11 claims.

He says he was once a paramedic with Air Methods air ambulance service, and is currently a paramedic with Freedom EMS in Dallas.

Christina Brodsly, a spokeswoman with Air Methods said Suprun does not work for the company, and the Texas Department of State Health Services records show there's no company called Freedom EMS.

A company named Freedom EMS once existed in Houston, but it went out of business in 2008.

Suprun has also spent the last five years in bankruptcy, having just been released from bankruptcy supervision this month. He also collected unemployment during part of the process.

In his New York Times op-ed, Suprun attacked everything from Trump's demeanor to his White House picks, adding he 'could be impeached in his first year given his dismissive responses to financial conflicts of interest'.

Suprun has made at least two appearances at Major League Baseball games where he was introduced as a 9/11 veteran and threw out the first pitch. Pictured above, he throws the first pitch at Globe Life Park in Arlington, Texas, on September 11, 2015

Suprun says he was one of the first on scene after a third plane flew into the Pentagon on 9/11 (pictured above)

'Mr. Trump lacks the foreign policy experience and demeanor needed to be commander in chief,' he writes. 'Mr. Trump urged violence against protesters at his rallies during the campaign.

'He speaks of retribution against his critics. He has surrounded himself with advisers such as Stephen K. Bannon, who claims to be a Leninist and lauds villains and their thirst for power, including Darth Vader.

'Rogue One, the latest Star Wars installment, arrives later this month. I am not taking my children to see it to celebrate evil, but to show them that light can overcome it.'

Suprun and nine other electors that includes Christine Pelosi (left, with mother Nancy), demanded a security briefing on government claims that Russia interfered in the election before they cast their votes

Suprun rallied his fellow electors behind a Republican alternative like John Kasich, Governor of Ohio, instead.

He said: 'I'm expecting backlash, but that has been par for the course this campaign. People are unhappy. They're angry. But I'm angry, too.'

In most states, electors are required by law to cast a vote for the winner of their state's popular vote.

But other states like Texas don't have a rule against electors going rogue, and at least six Democratic electors have already expressed their intentions to try to block Trump from securing 270 Electoral College votes on December 19.

So far, Suprun is the only Republican elector who has publicly said he will not cast his ballot for Trump.

Suprun and a group of nine other electors that includes the top-ranking House Democrat's daughter, Christine Pelosi, demanded a security briefing on government claims that Russia interfered in the election before they cast their votes.

Pelosi wrote an open letter titled 'Bipartisan Electors Ask James Clapper: Release Facts on Outside Interference in U.S. Election' on Medium earlier this week.

The open letter was signed by Pelosi and eight other electors, including Subpurn, but she said she didn't talk directly to Subpurn before including his name. Instead, she spoke to his representatives.

'What others are doing is really on them, because I've always been a Hillary Clinton voter,' Pelosi told DailyMail.com after news broke about Subpurn's past, adding that she's been 'staying in her own lane'.

'I haven't talked to the Republican electors other than them contacting me to say, "Yes I want to be included",' she said. 'I have reached out to make sure I had names and spellings correct for signatures.'

And Pelosi added that she believes that the focus should be on the CIA leaks.

'I think everyone who is an elector has a right to get some clarity from President Obama,' she said right before Obama held a press conference on Friday.

Hillary Clinton's campaign backed the the electors up on Monday, saying, 'The bipartisan electors' letter raises very grave issues involving our national security.'

'Electors have a solemn responsibility under the Constitution and we support their efforts to have their questions addressed,' campaign chairman John Podesta said.