John A Mercer was born in Missoula, Montana, graduate of Polson High School, BA University of Montana and JD Northwestern University. In Private practice in Polson since 1982. Former Speaker, Montana House of Representatives and former Chairman, Montana Board of Regents. Distinguished Service Award State Bar of Montana, Community Service Award University of Montana. Served as Special Prosecutor for the Polson City Police Commission.
He has four children: Tommy, Mike, Ara and Tia.