Convicted pedophile George Nader (pictured) met with then-chief strategist Steve Bannon at the White House more than a dozen times, according to leaked visitor logs

A convicted pedophile visited Donald Trump's White House on at least 13 different occasions in 2017 to meet with then-chief strategist Steve Bannon, according to leaked visitor logs.

George Nader, who has been convicted of sexually abusing young boys and is now in federal prison awaiting trial on child sex trafficking charges, first visited Bannon in the White House in February 2017, the month after Trump's inauguration, the Washington Examiner reported.

After that he kept visiting Bannon, who had a West Wing office yards from the Oval Office, the leaked visitor logs revealed, but it isn't clear if he entertained Nader in his office or somewhere else in the White House.

The revelation raises serious questions about how a convicted pedophile could be allowed entry repeatedly to the White House. The Secret Service is responsible for carrying out background checks of all visitors.

Secret Service declined to respond to a request for if it had admitted Nader into the White House after administering a background check. A spokesperson told DailyMail.com it would not provide any specific or general information on its process for visitor admittance 'for operational security reasons.'

A source felt Bannon's meetings with a convicted felon were 'clearly' problematic.

'They were always private meetings,' the source added.

Nader's rap sheet is long. In 1985 he was charged with received child pornography from the Netherlands, but they were dropped due to an invalid search warrant. He received a six-month sentence in 1991 for transporting pornographic videotapes from Germany of young teenage boys. And in 2003, Nader served one year is prison after he was convicted in Prague, Czech Republic for sexually abusing ten boys.

During Mueller's investigation last year, FBI agents inspecting Nader's three cell phones incidentally found on one images and videos of child pornography and beastiality.

In June 2019 he was arrested for possession of child pornography, images of beastiality and transportation of child pornography. In July, unsealed court documents revealed Nadler was also facing new federal charges of sex trafficking for allegedly 'engaging in sexual acts' with a 14-year-old boy he transported from Europe.

Nader is being held in jail in Virginia pending trial.

The 80-year-old first visited Bannon at the White House in February 2017, according to the nonpublic logs, and continued to make stops there through Bannon's tenure, which ended in August 2017.

It isn't clear if Nader continued to visit the White House after Bannon was fired.

The Lebanese American businessman also helped secured Bannon a speaking gig after his ouster that paid $100,000.

The revelations of his visits with Bannon and the relationship between the two comes as Bannon appears to be back in the good graces of Trump's inner circle.

The revelations of the 13 meetings come as Bannon appears to be making his way back into Trump's good graces. The president tweeted earlier this month that he 'loved working with' Bannon

Sources claimed that Bannon wasn't aware of Nader's (left) criminal record, and that Trump's son-in-law and senior adviser Jared Kushner introduced them to each other while planning the president's visit to Saudi Arabia in 2017

At the beginning of this month, Trump posted a video of a CNBC interview where Bannon talked about how unlikely Democratic primary candidates were to beat Trump in 2020.

'Nice to see that one of my best pupils is still a giant Trump fan,' Trump tweeted along with the clip of the interview. 'Steve joined me after I won the primaries, but I loved working with him!'

Bannon left right-wing Breitbart News, of which he was a founding member, in August 2016 to join Trump's campaign as chief executive.

About two week after Trump posted the video to his Twitter, a report revealed that Secretary of State Mike Pompeo spoke with Bannon and sought his advice on whether he should explore a Senate run in Kansas.

Since then, Pompeo has publicly ruled out a run, claiming he will stick with the administration.

Several sources close to Bannon say they never heard him talk about holding private meetings with Nader at the White House, or even mention his name.

Bannon was fired from his post at the White House shortly after the Unite the Rite rally in Charlottesville, Virginia that devolved into violent clashes between those protesting the removal of the Robert E. Lee statue and those claiming it was racist to keep it up.

Trump's chief strategist was decried as a 'symbol of White Nationalism' in the White House and was widely blamed for the president's response to the clashes, which was viewed as inadequate.

Some reports claimed then-White House Chief of staff John Kelly asked Bannon to submit his immediate resignation in lieu of being fired, but Bannon has disputed this, claiming that he only planned on 'spending one year' with Trump from the time he joined the campaign in August 2016.

'John Kelly and Steve Bannon have mutually agreed today would be Steve's last day. We are grateful for his service and wish him the best,' was the official statement from the White House upon his departure.

Breitbart also announced the same day that Bannon would not be returning as executive chairman of the site.

Bannon's commentary also featured prominently in Michael Wolff's expose, Fire and Fury, infuriated Trump.

Nadler's rap sheet of child sex crimes stems back to the 1980s. New charges were levied against him after the Muller investigation incidentally found child pornography and images of beastiality on one of his three cell phones

This court document from 1984 shows charges against Nader for transporting child pornography. The charges were ultimately dropped due to an invalidated search warrant

Nader was featured prominently in former Special Council Robert Mueller's Russia probe in connection to a December 2016 Trump Tower meeting with Abu Dhabi Crown Prince Mohammed bin Zayed.

He was also present at a January 2017 rendezvous in the Seychelles with Blackwater founder Erik Prince and a Russian banker.

Nader was previously a consultant for Blackwater, a military contractor.

Although the Russia investigation exonerated Trump of conspiring with Russia, it resulted in the new child pornography and abuse allegations for Nader.

A source close with Bannon told DailyMail.com that Bannon 'had zero knowledge of Nader's criminal record,' and claimed Secret Service vetted his entry to the White House, 'suggesting they, too, had zero knowledge.'

Instead, the source directed blame to Trump's son-in-law and senior adviser Jared Kushner, claiming the two met in Kushner's office at the White House.

'Mr. Bannon met George Nader through Jared Kushner at a meeting in Kushner's office; it appeared that Kushner had a long-term association with Nader,' the source said, adding that all of Nader's visits with Bannon were centered around planning Trump's visit to Saudi Arabia in May 2017.

'Kushner was running the planning process for the Riyadh Summit in early 2017, which Nader was a part of as a midlevel functionary from the Middle East,' the source continued. 'All of Nader's visits were associated with activities around the Riyadh Summit, for which there were dozens of planning and follow on meetings.'

Kushner's office swiftly pushed back on the claim that the president's senior adviser had anything to do with bringing Nader into the White House or introducing him to Bannon.

A senior administration official told DailyMail.com that the statements from the source close with Bannon 'are false.'