"I do not agree with the event, the activities of this organization do not correspond to the interests of Czech foreign policy"
The Daily Caller uploaded video and still images on Friday that purported to show leaked cell phone video of the staffer engaged in gay sex
Activists called for the expulsion of the congressman following a U.S. House Ethics Committee report detailing fraud and misuse of funds
"Today is my last day [...] I had an inappropriate relationship with a woman in the company, which I deeply regret. I'm truly sorry"