Robertson is a lifelong resident of Tewksbury, Massachusetts, one of the townships he represents in the state legislature.
According to his campaign website, Robertson graduated from the University of Massachusetts, Amherst, double majoring in economics and political science.
He previously served in the office of former State Representative James R.
[1] Robertson served ten years in the office of former State Representative James R. Miceli, starting with an internship.
Robertson later served as a constituent affairs aide, a legislative researcher, and finally Miceli's Chief of Staff.