Carlo conducts original research on primary elections, including the problems with party primaries and the evidence of reformed primary systems as solutions. He also consults with many internal and external stakeholders on best practices for primary election policy. Carlo was the researcher for Unite America Executive Director Nick Troiano's book The Primary Solution. Carlo previously worked for Fair Elections Portland, a nonpartisan electoral reform campaign that successfully expanded the use of ranked choice voting in Portland, ME, his hometown. He holds a bachelor’s degree in Government from Colby College.