[2] Lantz led the party in the 2015 provincial election, but fell 24 votes short in his attempt to win his own seat representing the riding of Charlottetown-Brighton in the provincial legislature.

Following a commanding victory in the April 3, 2023 provincial election, Prince Edward Island Premier Dennis King unveiled his new cabinet.

On October 9, 2024, following the resignation from cabinet of Natalie Jameson, Lantz was appointed the Minister of Education and Early Years.

[6] Lantz was previously Minister of Housing, Land and Communities.

[7] He is the brother of Jeff Lantz, a former Prince Edward Island MLA and current provincial court judge.