The Treasury Attache was fired after the alleged assault on New Year's Eve, 2014
A probe found he held the woman's head down and made her perform a sex act
Came after he made a midnight toast saying he was as 'hard as Lenin's statue'
He was married at the time and admitted cheating on his wife while in Mexico
In an interview with investigators, he insisted the encounter was consensual
The attache's name has been redacted from all documents his face obscured
His case has resurfaced after Brian Jeffrey Raymond was arrested last month
He is accused of drugging and raping 23 women while on the federal payroll