Rep. Jackie Speier posted a video Twitter and YouTube, saying she was attacked as a congressional staffer and that she remembers the fear and shame.
In the video she says, in part, "I was working as a congressional staffer. The chief of staff held my face, kissed me and stuck his tongue in my mouth. So I know what it's like to keep these things hidden deep down inside."
The 67-year-old Democrat says, "Congress has been a breeding ground for a hostile work environment for far too long."
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Speier's action comes three weeks after reports detailed allegations of decades of sexual harassment by Hollywood producer Harvey Weinstein.
The Associated Press contributed to this report.