Dominic was born in Negaunee, Michigan, to Italian immigrants, Nick and Josephine Jacobetti.

He fought for improving education, preventing the dumping of nuclear waste in the Upper Peninsula, tax limitation, seatbelt laws, insurance reform, veterans' rights, and legalizing abortions.

In fact his only major opponent during his forty-year tenure was Alva J. Menhennick, who only received about thirty-five percent of the popular vote.

[1] He was a staunch Catholic, and a member of numerous organizations, including the Moose; Eagles; Knights of Columbus; Elks; Lions.

Though the Upper Peninsula of Michigan is relatively low in population in comparison to the rest of the state, Jacobetti used his position to help direct sometimes significant funding to the Upper Peninsula (considering its low population), including the building of the Superior Dome, among other projects.

Jacobetti was initially stripped of his chairmanship and a number of Fiscal Agency employees were investigated and imprisoned.

Jacobetti was re-elected to his final term of office in 1994 and cleared of any wrongdoing in the House Fiscal Agency scandal by Michigan Attorney General Frank J. Kelley.

Jacobetti was affectionately nicknamed Puga (pronounced: Pooga), King Jake, and Godfather of the U.P.