William T. Haines graduated as Valedictorian from the University of Maine and completed his LL.B. at Albany Law School. He began his legal career in Kennebec County and later moved to Waterville, Maine. Haines held various positions, including county attorney, state senator, and house representative, before serving as the attorney general of Maine and a member of the governor’s executive council. His career culminated in his election as governor of Maine, during which he authorized significant infrastructure and legislative reforms.

William T. Haines's political career is marked by an intriguing blend of progressive economic policies with a focus on infrastructure and regulation, set against a backdrop of personal conservatism. His authorization of a bond issue for road improvements and support for a public utilities bill reveal an unexpected alignment with progressive economic reforms, while his sanctioning of an anti-trust act suggests a calculated effort to balance industrial growth with regulatory oversight. This juxtaposition hints at a nuanced approach that merits deeper examination.