Representative, United States House of Representatives, 2012-2019

Representative, Connecticut State House of Representatives, 2009-2011

Candidate, Connecticut State House of Representatives, District 103, 2010

Member, Cheshire Town Council, 2005-2008

Vice Chair, Congressional Gun and Violence Prevention Task Force, present

Former Member, Science, Space, and Technology, United States House of Represenatives

Former Ranking Member, Subcommittee on Disability Assistance and Memorial Affairs, United States House of Representatives

Former Member, Subcommittee on Highways and Transit, United States House of Representatives

Former Member, Subcommittee on Railroads, Pipelines, and Hazardous Materials, United States House of Representatives

Former Member, Subcommittee on Research and Technology, United States House of Representatives

Former Member, Subcommittee on Water Resources and Environment, United States House of Representatives

Former Member, Transportation and Infrastructure Committee, United States House of Representatives

Former Member, Veterans' Affairs Committee, United States House of Representatives

Former Adjunct Professor, American University

Former Attorney, Sidley Austin Limited Liability Partnership

Former Attorney, Supreme Court Bar

Law Clerk, United States District Judge Robert Keeton, Massachusetts

Former Senior Research Scholar, Yale

Member, Chamber of Commerce, present

Chair, Board of Trustees, First Congregational Cheshire

Board Member, Cheshire Public Library

Lay Member, Committee on Ministry, New Haven Association of the United Church of Christ

Legal Advisor, Connecticut League of Women Voters Consensus Project

Member, Parent-Teacher Association