[1] He served on the Opposition bench as Shadow Minister for Official Languages and la Francophonie.

At the same time, he followed the family tradition of serving in the military as part of the 6th Field Artillery Regiment, based in Lévis, Quebec.

Clarke's political involvement began in 2007, when he joined the Conservative Party of Canada.

Finally, in 2013 he completed an internship with the issues management team in the Office of the Prime Minister of Canada.

In 2017, the new Conservative Leader, Andrew Scheer, appointed Clarke Shadow Cabinet Secretary for Official Languages and La Francophonie, and since September 2018, he served as Deputy Shadow Minister for Small Business and Export Promotion, Official Languages and la Francophonie and sat on the Standing Committee on Official Languages as Vice-Chair.