Bruce Castor Jr., a former district attorney who declined to press sexual-assault charges against Bill Cosby in 2005, is part of former President Donald Trump’s defense team for his impeachment trial next week.

FILE – In this Aug. 16, 2016, file photo, Bruce L. Castor Jr. speaks a day before taking the oath to become acting attorney general during a news conference in the agency’s headquarters in Harrisburg, Pa. Castor, a former district attorney who declined to press sexual-assault charges against Bill Cosby in 2005 has filed the beginnings of a lawsuit against Cosby’s accuser in Philadelphia. An attorney for Castor said the personal-injury complaint will claim Andrea Constand sued Castor for defamation in 2015 so he would lose the prosecutor’s race. The winner, Kevin Steele, had criticized Castor’s handling of the Cosby case. (AP Photo/Marc Levy, File)