- Josh Turek
- Joshua David Hawley
- Joshua Joseph Weil
- Joshua Kraft
- Joshua Kushner
- Joshua Logan Mckee
- Joshua Rales
- Joy Hoover
- Joyce Beatty
- Jr Majewski
- Juan Ciscomani
- Juan Vargas
- Jude Gomila
- Judy Chu
- Jukaku Tayeb
- Julia Brownley
- Julia Letlow
- Julian Beaudion
- Julian Castro
- Juliana Stratton
- Julie Fedorchak
- Julie Gonzales
- Julie Johnson
- Junaid Ahmed
- Justin Amash
- Justin Douglas
- Justin Kirk
- Justin Murphy
- Justin Smith
- Kaela Berg
- Kaitlan Collins
- Kaja Kallas
- Kamala Harris
- KAMEN, AL (NOT EMPLOYED, FEC donor)
- Karen Dalton
- Karen Karniol-Tambour
- Karen Matthews
- Kari Lake
- Karl Fetterman
- Karl Rove
- KARNY, LORI (SELF EMPLOYED, FEC donor)
- Kat Abughazaleh
- Kat Cammack
- Katherine Boyle
- Katherine Clark
- Katherine M. Clark
- Katherine Maher
- Kathy Castor
- Katie Boyd Britt
- Katie Porter
- Katrina Shankland
- KEATING, KATE (THE DUBERSTEIN GROUP, FEC donor)
- Keith Olbermann
- Keith Rabois
- Keith Self
- Keith Sonderling
- Kelly Daughtry
- Kelly Loeffler
- Kelly Morrison
- Ken Calvert
- Ken Cuccinelli
- Ken Griffin
- Ken Paxton
- Kendall Qualls
- Ketanji Brown Jackson
- Kevin Coughlin
- Kevin Cramer
- Kevin D. Roberts
- Kevin Hern
- Kevin Kiley
- Kevin Lincoln
- Kevin McCarthy
- Kevin Mullin
- Kevin Van Ostern
- Kim Reynolds
- Kim Schrier
- Kim Scott
- Kimbal Musk
- Kimberlyn King-Hinds
- Kina Collins
- Kirsten Engel
- Kirsten Gillibrand
- Kishla Askins
- Kristen McDonald Rivet
- Kristen Welker
- KRIVANEK, ROBIN (NOT EMPLOYED, FEC donor)
- KUHN, GORDON (NOT EMPLOYED, FEC donor)
- Kurt Alme
- Kurt Schaefer
- Kweisi Mfume
- Kyle Austin
- Kyle Kirkland
- Kyrsten Sinema
- La Ford
- Lachlan Murdoch
- LaMonica McIver
- Lamont Mcclure
- Lance Gooden
- Lanny Griffith
- Lanon Baccam
- Larry Ellison
- Larry Hogan
- Larry Kidd
- Larry Marker
- Larry Solov
- LARSE, JOHN (SELF EMPLOYED, FEC donor)
- Lateefah Simon
- LAUFER, ERIC (SELF EMPLOYED, FEC donor)
- Laura Arnold
- Laura Benjamin
- Laura Fine
- Laura Friedman
- Laura Gillen
- Laura Ingraham
- Laura Ricketts
- Laurel M. Lee
- Lauren Babb Tomlinson
- Lauren Boebert
- Lauren Underwood
- Laurie Buckhout
- Lawrence Summers
- Lee Zeldin
- Leela Gray
- Leon Black
- Leonard Leo
- LEONETTI, GINA MARIA (SELF EMPLOYED, FEC donor)
- Leslie Lewallen
- Leslie Wexner
- Lester Holt
- Lew Webb
- Lex Fridman
- LIEBERMAN, STEPHEN (NOT EMPLOYED, FEC donor)
- Linda McMahon
- Linda Phan
- Linda Sanchez
- Linda T. Sánchez
- LINDBURG, EILEEN (NOT EMPLOYED, FEC donor)
- Lindsay James
- LINDSAY, ELLYN (NOT EMPLOYED, FEC donor)
- Lindsey Graham
- Lisa Blunt Rochester
- Lisa C. McClain
- Lisa Monaco
- Lisa Murkowski
- Lizzie Fletcher
- Lloyd Doggett
- Lloyd Smucker
- Logan Keener
- Lois Frankel
- Lori Chavez-Deremer
- Lori Trahan
- Lou Correa
- Louis Bacon
- Lucas Kunce
- Lucas St. Clair
- Lucia Mcbath
- Lucia Simonelli
- Lucy McBath
- Luis von Ahn
- Luz M. Rivas
- MACAULAY, STEWART (NOT EMPLOYED, FEC donor)
- MACKINNON, JEFFREY (FARRAGUT PARTNERS, FEC donor)
- Macklemore
- Madeleine Dean
- Maggie Goodlander
- Maggie Haberman
- Mai Vang
- MAKIHARA, JUN (NOT EMPLOYED, FEC donor)
- Malcolm Nance
- Mallory McMorrow
- MANDEL, STEVE (LONE PINE CAPITAL, FEC donor)
- MANDEL, SUE (NOT EMPLOYED, FEC donor)
- MANGLE, MARILYN (NOT EMPLOYED, FEC donor)
- Manny Rutinel
- Mansoor Ahmed
- Manuel Bronstein
- Marc A. Veasey
- Marc Andreessen
- Marc Benioff
- Marc Randolph
- Marc Rowan
- Marco Rubio
- Marcos Galperin
- Marcy Kaptur
- Margaret Wood Hassan
- Maria Cantwell
- Maria Elvira Salazar
- Mariannette Miller-Meeks
- Marie Gluesenkamp Perez
- Marie-Josee Kravis
- Marilyn Strickland
- Mario Diaz-Balart
- Mario Schlosser
- Mark Alford
- Mark B. Messmer
- Mark Baisley
- Mark Begich
- Mark Burns
- Mark DeSaulnier
- Mark E. Amodei
- Mark Harris
- Mark J. Bernstein
- Mark Justin Sr Houck
- Mark Kelly
- Mark Lamb
- Mark Lynch
- Mark Pincus
- Mark Pocan
- Mark Read
- Mark Smith
- Mark Takano
- Mark Teixeira
- Mark Thompson
- Mark Warner
- Mark Zuckerberg
- Markwayne Mullin
- Marlene Galan-Woods
- Marlin A. Stutzman
- Marlin Stutzman
- Marni Von Wilpert
- Marquita Bradshaw
- Marsha Blackburn
- Martin Heinrich
- Marty O'Donnell
- Marvin Suber Williams
- Mary Draves
- Mary E. Miller
- Mary Gay Scanlon
- Mary Peltola
- Mary Waters
- Matt Clifford
- Matt Cohler
- Matt Dolan
- Matt Dunlap
- Matt Feury
- Matt Gaetz
- Matt Gunderson
- Matt Rosendale
- Matt Van Epps
- Matthew Cartwright
- Matthew Maasdam
- Matthew Van Epps
- Matthew Yglesias
- Matthieu Pigasse
- Mattie Daughtry
- Maura Corby Sullivan
- Maureen Galindo
- Maurice Lévy
- Max L. Miller
- Max Tagher
- Maxine Dexter
- Maxine Waters
- Maxwell Frost
- MAXWELL, BRYAN (STRATEGIC MARKETING INNOVATIONS, FEC donor)
- Mayra Flores
- Mazi Pilip
- Mazie K. Hirono
- McKay Coppins
- MCLENDON, MARGARET (RETIRED, FEC donor)
- Megyn Kelly
- Melanie A. Stansbury
- Melat Kiros
- Melisa López Franzen
- Melissa Bean
- Melissa Bell
- Melissa Conyears-Ervin
- Melissa Hernandez
- Melvin Tull
- Micah Lasher
- Michael A. Rulli
- Michael Alfonso
- Michael Baumgartner
- Michael Bloomberg
- Michael Bouchard
- Michael Boudreaux
- Michael Cloud
- Michael D. Shear
- Michael F. Bennet
- Michael Garcia
- Michael Guest
- Michael Jay Mr. Jr. Markey
- Michael K. Simpson
- Michael Katz
- Michael Lawler
- Michael McCaul
- Michael R. Turner
- Michael Roth
- Michael Whatley
- MICHEL, STUART (NOT EMPLOYED, FEC donor)
- Michele Morrow
- Michele Tafoya
- Michelle Fischbach
- Michelle Obama
- Michelle Steel
- Micky Malka
- Mika Brzezinski
- Mike Allen
- Mike Beltran
- Mike Bost
- Mike Bouchard