An ex-adviser to Donald Trump's presidential transition team and key witness in former Special Counsel Robert Mueller’s investigation into Russian interference in the 2016 election has pleaded guilty to multiple sex crimes involving minors.

George Nader, a 60-year-old Middle East specialist with close ties to the leaders of the United Arab Emirates, admitted to possessing child pornography and bringing an underage boy to the US for “commercial sex” during a court hearing on Monday.

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.