Ms. Garcia, and the other women who came forward, did not name the lobbyists or lawmakers involved in the encounters. The letter was first published in The Los Angeles Times on Tuesday morning.

Pamela Lopez, a partner at a Sacramento lobbying firm, said that for years she has dealt with inappropriate suggestions from male officials, but the most disturbing episode came early last year, at a social gathering of lawmakers and lobbyists in a Sacramento bar.

As Ms. Lopez walked into the restroom, she said, she felt a large body pressing behind her. When she turned around, she saw that a lawmaker had locked the door behind him, had undone his pants and asked her to touch his genitals.

“He had exposed himself and begun masturbating,” she said. “All I was thinking was what do I do, what do I do. And of course, I didn’t want to cause a scene.”

“I said, ‘No, I am not going to touch you,’ ” she said. “I was firm and clear but I did not want to make a scene and he continued to masturbate and he kind of moved toward me and said, ‘Just put your hand on me.’ I said no.”

Karen Skelton, a political strategist and lawyer in Sacramento who signed the letter, said she experienced harassment firsthand when she was hired by a Fortune 500 company six years ago to run a campaign on behalf of a major legislative initiative. Her job included dealing with an elected California official involved with the issue.

“This guy did things to me like touch my leg under the table at lunch and brush back my hair over my shoulder and sending me texts at 1 in the morning asking where I was,” she said, declining to name him. “I felt creeped out. I’m a big girl. I can deal with it. What if I had been 22, someone new to this, who needed to support their family?”