Patrick Guerriero is a former Massachusetts state legislator, political consultant, and founding principal of Civitas Public Affairs Group, a public affairs consultancy that caters to Democratic Party candidates and center-left clients.
Guerriero is a former Massachusetts state legislator; from 1998 to 2001, he served as mayor of Melrose, Massachusetts. A former Republican, Guerriero announced in 2010 that he was leaving the Republican Party to identify as an “Independent.” 
Guerriero is the former leader of Log Cabin Republicans, an LGBT group within the Republican Party.  Guerriero also worked as founding executive director of Gill Action Fund from 2006 to 2011, a gay and lesbian advocacy group.