Officials below the level of State Legislator and all other individuals and entities are listed only if they have a Wikipedia page or are otherwise clearly notable.
Mark Smith, Iowa State Representative from District 71 since 2001 and former Minority Leader of the Iowa House of Representatives (2013–2019)[18](endorsed Joe Biden after Booker withdrew from the race)[19]
Amy Nielsen, Iowa State Representative from District 77 since 2017[20](endorsed Joe Biden after Booker withdrew from the race)[21]
Monica Kurth, Iowa State Representative from District 89 since 2017 (endorsed Amy Klobuchar after Booker withdrew from the race)[22]
Selena Torres, Nevada Assemblywoman from District 3 since 2018 (co-endorsed Castro, who dropped out first;[23] Torres endorsed Joe Biden after Booker withdrew from the race)[24]
Jon Morgan, New Hampshire State Senator for District 23 since 2018[29]
Jacqueline Cali-Pitts, New Hampshire State Senator for Rockingham District 30 since 1998[30](endorsed Joe Biden after Booker withdrew from the race)[31]
Anita Burroughs, New Hampshire State Representative from the Carroll 1 District since 2018[25](endorsed Joe Biden after Booker withdrew from the race)[32]
Bruce Tatro, New Hampshire State Representative from the Cheshire District 15 since 2010[25]
Roger Dontonville, New Hampshire State Representative from Grafton District 10 since 2016[33]
Donald Bouchard, New Hampshire State Representative from Hillsborough District 11 since 2018[34]
Peter Leishman, New Hampshire State Representative from various districts (1996–2002), from Hillsborough District 6 (2006–2008), Hillsborough District 3 (2008–2010) and Hillsborough District 24 since 2011[25]
Patricia Klee, New Hampshire State Representative from Hillsborough District 30 since 2016[34]
Latha Mangipudi, New Hampshire State Representative from Hillsborough District 35 since 2013 (endorsed Amy Klobuchar after Booker withdrew from the race)[35]
Christy Bartlett, New Hampshire State Representative from Merrimack District 19 since 2012[36]
Katherine Rogers, New Hampshire State Representative from the Merrimack 28 District since 2012[25]
Kate Murray, New Hampshire State Representative from Rockingham District 24[34]
Jeffrey Salloway, New Hampshire State Representative from the Strafford District 5 since 2016[25](endorsed Elizabeth Warren after Booker withdrew from the race)[16]
Timothy Horrigan, New Hampshire State Representative from Strafford District 6 since 2010[37]
Linn Opderbecke, New Hampshire State Representative from the Strafford District 15 since 2016 (endorsed Amy Klobuchar after Booker withdrew from the race)[38]
Gerri Cannon, New Hampshire State Representative from the Strafford District 18 since 2018[39]
Cecilia Rich, New Hampshire State Representative from the Strafford District 18 since 2018[34](endorsed Bernie Sanders after Booker withdrew from the race)[40]
Lee Walker Oxenham, New Hampshire State Representative from the Sullivan 1 District since 2014[25](endorsed Elizabeth Warren after Booker withdrew from the race)[16]
John Knowles, former New Hampshire State Representative from Hillsborough District 27 (2006–2010)[41]