Class III terms run from the beginning of the 115th Congress on January 3, 2017, to the end of the 117th Congress on January 3, 2023. 

Michael F. Bennet

State: Colorado
Entered Office: January 3, 2009
Term Expires: January 3, 2023
Mailing Address: 261 Russell Senate Office Building Washington DC 20510
Phone Number: (202) 224-5852

Richard Blumenthal

State: Indiana
Entered Office: January 3, 2011
Term Expires: January 3, 2023
Mailing Address: 706 Hart Senate Office Building Washington DC 20510
Phone Number: (202) 224-2823

Catherine Cortez Masto

State: Nevada
Entered Office: January 3, 20217
Term Expires: January 3, 2023
Mailing Address: 516 Hart Senate Office Building Washington DC 20510
Phone Number: (202) 224-3542

Tammy Duckworth

State: Illinois
Entered Office: January 3, 2017
Term Expires: January 3, 2023
Mailing Address: 524 Hart Senate Office Building Washington DC 20510
Phone Number: (202) 224-2854

US HOUSE: Illinois, District 8 113th-114th (2013-2017)

Margaret Wood Hassan

State: New Hampshire
Entered Office: January 3, 2017
Term Expires: January 3, 2023
Mailing Address: 324 Hart Senate Office Building Washington DC 20510
Phone Number: (202) 224-3324

Mark Kelly

State: Indiana
Entered Office: January 3, 2020
Term Expires: January 3, 2023
Mailing Address: B40B Dirksen Senate Office Building Washington DC 20510
Phone Number: (202) 224-2235

Patrick J. Leahy

State: Vermont
Entered Office: January 3, 1975
Term Expires: January 3, 2023
Mailing Address: 437 Russell Senate Office Building Washington DC 20510
Phone Number: (202) 224-4242

Patty Murray

State: Washington
Entered Office: January 3, 1993
Term Expires: January 3, 2025
Mailing Address: 154 Russell Senate Office Building Washington DC 20510
Phone Number: (202) 224-2621

Alex Padilla

State: California
Entered Office: January 3, 2021
Term Expires: January 3, 2023
Mailing Address: B03 Russell Senate Office Building Washington DC 20510
Phone Number: (202) 224-3553

Brian Schatz

State: Hawaii
Entered Office: January 3, 2012
Term Expires: January 3, 2023
Mailing Address: 722 Hart Senate Office Building Washington DC 20510
Phone Number: (202) 224-3934

Charles E. Schumer

State: New York
Entered Office: January 3, 1999
Term Expires: January 3, 2023
Mailing Address: 322 Hart Senate Office Building Washington DC 20510
Phone Number: (202) 224-6542

US HOUSE: New York, District 9 103rd-105th (1993-1999)
US HOUSE: New York, District 10 98th-102nd (1983-1993)
US HOUSE: New York, District 16 97th (1981-1983)

Chris Van Hollen

State: Maryland
Entered Office: January 3, 2017
Term Expires: January 3, 2023
Mailing Address: 110 Hart Senate Office Building Washington DC 20510
Phone Number: (202) 224-4654

US HOUSE: Maryland, District 8 108th-114th (2003-2017)

Raphael G. Warnock

State: Georgia
Entered Office: January 3, 2021
Term Expires: January 3, 2023
Mailing Address: B40D Dirksen Senate Office Building Washington DC 20510
Phone Number: (202) 224-3643

Ron Wyden

State: Oregon
Entered Office: January 3, 1996
Term Expires: January 3, 2023
Mailing Address: 221 Dirksen Senate Office Building Washington DC 20510
Phone Number: (202) 224-5244

US HOUSE: Oregon, District 3 97th-104th (1981-1996)