John Phillips ' reputation taking hit with claims of incest by daughter Mackenzie . The former MP for Paisley and Renfrewshire has been accused of having an affair with his teenage daughter, who is now 18. Mamas & Papas were leading California group of '60s , with tangled romantic links . John Phillips was heavy drug user , once convicted of drug trafficking .
John Phillips ' reputation taking hit with claims of incest by daughter Mackenzie . John Phillips , who died in 2001 , lived life of excess . Mamas & Papas were leading California group of '60s , with tangled romantic links . John Phillips was heavy drug user , once convicted of drug trafficking .