Three former employees of the famed Cato Institute say they were sexually harassed by Ed Crane, the 73-year-old co-founder and president emeritus of the think tank and one of the most recognizable figures in the libertarian movement.

One former employee said Crane asked her to take off her bra. Another said he compared her breasts to pornographic images on his computer. A third said he sent her an email on breast augmentation. Crane also settled an additional sexual harassment claim by a former employee in 2012, her lawyer confirmed to POLITICO.

Crane, who served as president and CEO of the libertarian think tank for more than 30 years before becoming president emeritus after a dispute with Cato shareholders Charles and David Koch, denied several of the incidents or said he didn’t recall them before ending a brief interview. He declined to comment on whether he was involved in a legal settlement in 2012.