California State Sen. Marie Alvarado-Gil is facing a civil lawsuit filed by her ex-chief of staff who alleges the senator forced him to do sexual favors while she was his boss and he suffered a back injury because of it. Alvardo-Gil, who represents parts of Eastern California and the Central Valley, recently changed her party affiliation from Democratic to Republican. Her former chief of staff, Chad Condit, filed the civil lawsuit in Sacramento Superior Court on Thursday. The lawsuit includes allegations of sexual harassment, discrimination, retaliation and violations of other state labor laws.