Michael J. Stack III

Michael Joseph Stack III is an American attorney and former politician who served as the 33rd lieutenant governor of Pennsylvania from 2015 to 2019. A member of the Democratic Party, he previously served as a member of the Pennsylvania State Senate for the 5th district from 2001 to 2015. Stack is the first lieutenant governor of Pennsylvania to be denied renomination, being defeated by then-Mayor John Fetterman.