Santucci's research centers on voting systems and party politics in the United States. He has published extensively on Americans' use of ranked-choice voting and proportional representation. In his capacity as an independent contractor, Santucci prepares reports on whether and how voting-system change might improve diversity in local government.
Shows that the most recent, runner-up party overwhelming supplied votes to the 'yes' side . Shows elite endorsements tending to come from this party, albeit not exclusively. Highlights a drift in the mass of public opinion, such that reform partners could coordinate.
Documents conditions leading to the adoption (or not) of single-transferable-vote systems in 24 American cities, 1915-47.
Presents evidence that suggests the single transferable vote leads parties to diversify their slates, at some cost to legislative discipline. Uses roll-call data from Cincinnati (1929-57) and Worcester, Massachusetts. (1949-60).