He was elected to represent the district of Carbonear-Trinity-Bay de Verde in the Newfoundland and Labrador House of Assembly in a 2014 by-election,[1] and re-elected in 2015.

Crocker served as Minister of Fisheries, and subsequently as Minister of Transportation and Works in the Ball government.

On August 19, 2020, Crocker was appointed Minister of Justice and Public Safety, President of Treasury Board, and Government House Leader in the Furey government.

[6] He was appointed Minister of Tourism, Culture, Arts and Recreation and Government House Leader.

[7] Before being elected, Crocker served as an executive assistant to Newfoundland and Labrador Liberal leader Dwight Ball.