Chris Murphy (D): Murphy has been endorsed by NARAL Pro-Choice America, The New York Times, , , , , , , , , the Hartford Courant, Senator Richard Blumenthal, the Democratic Party, the , the , the , 4,000 CT Communications Workers, and the West Hartford Democratic Town Committee.
Linda McMahon (R): McMahon has been endorsed by , the , and . She has also been endorsed by the Republican Town Committees in Beacon Falls, Bethel, Bozrah, Burlington, Chester, Colebrook, Columbia, Coventry, Cromwell, Danbury, East Hampton, East Windsor, Hebron, Kent, Lebanon, Middlebury, Monroe, Montville, New Britain, New Fairfield, Norfolk, Norwich, New Canaan, Plainville, Plymouth, Portland, Prospect, Roxbury, Salem, Scotland, Seymour, Southington, Stafford, Voluntown, Waterbury, and Woodbury.
In addition, McMahon has also been endorsed by National Committeewoman Pat Longo, National Committeeman John Frey, Former Ambassador Tom Foley, Former Secretary of the State Pauline Kezer, Mayors Mark Boughton, Tony Staffieri, Scott Kaupin, Tim Stewart, Patricia Murphy, Richard Moccia, Bob Chatfield, Mike Pavia, Ryan Bingham, Mike Jarjura, and Donna Hemmann, First Selectmen Robert Burbank, Leonard D'Amico, Bob Morra, Bill Rose, Mertie Terry, Jayme Stevenson, Allan Platt, Thomas Breakell, John E. Adams, Peter Tesei, Joe Mazza Paul DeStefano, Michael Criss, Leo Paul, Jon Brayshaw, John Hodge, Dan Jerram, Douglas Humes, Mike Freda, Jim Zeoli, George Temple, Barbara Henry, Daniel Syme, Kurt Miller, Richard Shuck, Tim Herbst, Jerry Stomski, and Allan walker, Senators Len Fasano, Tony Guglielmo, Rob Kane, John Kissel, Joe Markley, Michael McLachlan, Len Suzio, Jason Welch, Kevin Witkos.
Christopher Shays (R): Shays has been endorsed by , , former Lt. Gov. Michael Fedele, , The Day, the Redding Republican Town Committee, Karl Rove, State Senate Minority Leader John McKinney, Peter Schiff