A gay man who identified himself as a liberal Democrat is accusing New Jersey Senator Cory Booker of sexually assaulting him in 2014.

The man, who wishes to remain anonymous, wrote a lengthy open letter that was posted on Twitter, in which he describes the assault that occurred in a bathroom following a meeting at his workplace, where the two met.

The letter “goes into excruciating detail,” according to PJ Media:

I stopped to use one of the building’s single-occupancy restrooms. Upon washing my hands prior to leaving, I hear knocking on the door. When it comes to these restrooms, it is customary to knock first in case someone is using it, even though there is an inner lock. When I opened the door, Mr. Booker was there. He smiled and very gregariously said, “Hey!” We engaged in some brief idle chitchat in the entryway and then he asked me to speak in private. What happened next, happened so fast that it was hard for me to comprehend what was going on. It was one of those surreal moments where what was happening was such a deviation and such a perversion of one’s natural daily routine that I hardly knew how to react. He pulled me into the bathroom, albeit not too forcefully, and slowly pushed me against the restroom wall. He said that “Being a hero was a serious turn-on.” He continued, “The Senate appreciates fine citizens like you. Especially this senator.” He then put his left hand on my groin, over my jeans, and began to rub. I seem to remember saying something like “What is happening?” It was a bit like having vertigo. He then used his other hand to grab my left hand with his right and pulled it over to touch him. At the same time, he disengaged from rubbing me and used his left hand to push me to my knees from my shoulder for what was clearly a move to have me perform oral sex on him. At that point, I pulled away quite violently and told him I had to go. I did not see him again before he left.