The sexual harassment scandal surrounding Michigan Democrat Rep. John Conyers has shed light on another major scandal: Conyers’ deteriorating mental health, which is said to have been an open secret in Washington and Michigan political circles.

That the 88-year-old Conyers, until recently a ranking member on the powerful House Judiciary Committee, is reportedly losing his mental health is emerging as common knowledge among political insiders at the same time that Democrats push Conyers toward resigning.

Conyers is accused of serially sexually harassing his female staffers and demanding sexual favors from them, and Democrats have struggled to control the political blowback stemming from the accusations.

Conyers’ reportedly deteriorating mental health has been hinted at in Michigan political circles for years.