Appointed by President Joe Biden, United States Ambassador to Ireland, 2022-present

Majority Leader, Commonwealth of Massachusetts House of Representatives, 2021-2022

Representative, Commonwealth of Massachusetts House of Representatives, District Eleventh Plymouth, 2013-2022

Former Member, House Ways and Means Committee, Massachusetts State House of Representatives

Former Member, Joint Committee on Community Development and Small Business, Massachusetts State House of Representatives

Former Chair, Joint Committee on Judiciary, Commonwealth of Massachusetts House of Representatives

Former Member, Joint Committee on Ways and Means, Massachusetts State House of Representatives

Former Member, Post Audit and Oversight Committee, Massachusetts State House of Representatives

Former Member, Telecommunication, Utilities and Energy Committee, Massachusetts State House of Representatives

Attorney/Owner, Law Office of Claire D. Cronin, 2007-present

Mediator/Arbitrator, Commonwealth Mediation and Conciliation, Incorporated, 2002-present

Intern, Governor Edward J. King's Office

Legislative Assistant, Office of Federal and State Relations

Former Member, Brockton Democratic City Committee

Member, Democratic State Committee

Member, Easton Democratic Town Committee

Chair, Frothingham Family Yong Men's Catholic Association's Annual Strong Kids Campaign

Member, Massachusetts Bar Association

Member, The Charity Guild of Brockton

Board Member, Foundation for Excellence in Education in Easton (FEEE), 2011-2012

Board Member, Old Colony YMCA, 2001-2011