The International Association of Machinists and Aerospace Workers is a labor union representing around 570,000 workers nationwide. They are affiliated with the AFL-CIO.
1964
–Endorsed Lyndon Johnson (D) for President (won)
1980
–Endorsed Ted Kennedy (D) for President (lost primary)
2008
–Endorsed Mike Huckabee (R) for President (lost primary)
–Endorsed Barack Obama (D) for President (won)
2012
–Endorsed Martin Heinrich (D) for Senator of New Mexico (won)
–Endorsed Charlie Wilson (D) for Representative of Ohio, 6th District (lost general election)
2016
–Endorsed Hillary Clinton (D) for President (lost general election)
–Endorsed Patrick Murphy (D) for Senator of Florida (lost general election)
–Endorsed Raja Krishnamoorthi (D) for Representative of Illinois, 8th District (won)
2018
–Endorsed Steve Farley (D) for Governor of Arizona (lost primary)
–Endorsed Gwen Graham (D) for Governor of Florida (lost primary)
–Endorsed Michelle Lujan Grisham (D) for Governor of New Mexico (won)
–Endorsed Joe Manchin (D) for Senator of West Virginia (won)
–Endorsed Matt Heinz (D) for Representative of Arizona, 2nd District (lost primary)
–Endorsed Audrey Denney (D) for Representative of California, 1st District (lost general election)
–Endorsed Jessica Morse (D) for Representative of California, 4th District (lost general election)
–Endorsed Zoe Lofgren (D) for Representative of California, 19th District (won)
–Endorsed Katie Hill (D) for Representative of California, 25th District (won)
–Endorsed Judy Chu (D) for Representative of California, 27th District (won)
–Endorsed Alan Lowenthal (D) for Representative of California, 47th District (won)
–Endorsed Mike Levin (D) for Representative of California, 49th District (won)
–Endorsed Jahana Hayes (D) for Representative of Connecticut, 5th District (won)
–Endorsed Dan Lipinski (D) for Representatives of Illinois, 3rd District (won)
–Endorsed Betsy Dirksen Londrigan (D) for Representative of Illinois, 13th District (lost general election)
–Endorsed Jared Golden (D) for Representative of Maine, 2nd District (won)
–Endorsed Gretchen Driskell (D) for Representative of Michigan, 7th District (lost general election)
–Endorsed Elissa Slotkin (D) for Representative of Michigan, 8th District (won)
–Endorsed Andy Levin (D) for Representative of Michigan, 9th District (won)
–Endorsed Tim Greimel (D) for Representative of Michigan, 11th District (lost primary)
–Endorsed Don Bacon (R) for Representative of Nebraska, 2nd District (won)
–Endorsed Tom Malinowski (D) for Representative of New Jersey, 7th District (won)
–Endorsed Joseph Morelle (D) for Representative of New York, 25th District (won)
–Endorsed Joseph Morelle (D) for Representative of New York, 25th District (won)
–Endorsed Danny O’Connor (D) for Representative of Ohio, 12th District (lost special general election)
–Endorsed Danny O’Connor (D) for Representative of Ohio, 12th District (lost general election)
–Endorsed Richard Lazer (D) for Representative of Pennsylvania, 5th District (lost primary)
–Endorsed Jana Lynne Sanchez (D) for Representative of Texas, 6th District (lost general election)
–Endorsed Randy Bryce (D) for Representative of Wisconsin, 1st District (lost general election)
–Endorsed Dan Kohl (D) for Representative of Wisconsin, 6th District (lost general election)
2020
–Endorsed Joe Biden (D) for President (won)
–Endorsed Ellen Rosenblum (D) for Attorney General of Oregon (won)
–Endorsed Joe Kennedy, III (D) for Senator of Massachusetts (lost primary)
–Endorsed Audrey Denney (D) for Representative of California, 1st District (lost general election)
–Endorsed Zoe Lofgren (D) for Representative of California, 19th District (won)
–Endorsed Alan Lowenthal (D) for Representative of California, 47th District (won)
–Endorsed Mike Levin (D) for Representative of California, 49th District (won)
–Endorsed Rosa DeLauro (D) for Representative of Connecticut, 3rd District (won)
–Endorsed Raymond Lenzi (D) for Representative of Illinois, 12th District (lost general election)
–Endorsed David Trone (D) for Representative of Maryland, 6th District (won)
–Endorsed Rashida Tlaib (D) for Representative of Michigan, 13th District (won)
–Endorsed Albio Sires (D) for Representative of New Jersey, 8th District (won)
–Endorsed Bill Pascrell (D) for Representative of New Jersey, 9th District (won)
–Endorsed Yvette Clarke (D) for Representative of New York, 9th District (won)
–Endorsed Ritchie Torres (D) for Representative of New York, 15th District (won)
–Endorsed Tedra Cobb (D) for Representative of New York, 21st District (lost general election)
–Endorsed Nate McMurray (D) for Representative of New York, 27th District (lost general election)
–Endorsed Susan Wild (D) for Representative of Pennsylvania, 7th District (won)
–Endorsed Pramila Jayapal (D) for Representative of Washington, 7th District (won)
2022
–Endorsed Laura Kelly (D) for Governor of Kansas (won)
–Endorsed Kathy Hochul (D) for Governor of New York (won)
–Endorsed Maggie Toulouse Oliver (D) for Secretary of State of New Mexico (won)
–Endorsed Tim Ryan (D) for Senator of Ohio (lost general election)
–Endorsed Patty Murray (D) for Senator of Washington (won)
–Endorsed Javier Ramos (D) for Representative of Arizona, 5th District (lost general election)
–Endorsed Barbara Lee (D) for Representative of California, 12th District (won)
–Endorsed Jay Chen (D) for Representative of California, 45th District (lost general election)
–Endorsed Rosa DeLauro (D) for Representative of Connecticut, 3rd District (won)
–Endorsed Marie Newman (D) for Representative of Illinois, 6th District (lost primary)
–Endorsed Frank Mrvan (D) for Representative of Indiana, 1st District (won)
–Endorsed Andy Levin (D) for Representative of Michigan, 11th District (lost primary)
–Endorsed Betty McCollum (D) for Representative of Minnesota, 4th District (won)
–Endorsed Bill Pascrell (D) for Representative of New Jersey, 9th District (won)
–Endorsed Teresa Leger Fernandez (D) for Representative of New Mexico, 3rd District (won)
–Endorsed Carolyn Maloney (D) for Representative of New York, 12th District (lost primary)
–Endorsed Jamie McLeod-Skinner (D) for Representative of Oregon, 5th District (lost general election)
–Endorsed Susan Wild (D) for Representative of Pennsylvania, 7th District (won)
–Endorsed Becca Balint (D) for Representative of Vermont, At-Large District (won)
2024
–Endorsed Kamala Harris (D) for President (lost general election)
–Endorsed Crystal Quade (D) for Governor of Missouri (lost general election)
–Endorsed Eugene DePasquale (D) for Attorney General of Pennsylvania (lost general election)
–Endorsed Adam Schiff (D) for Senator of California (won)
–Endorsed Adam Schiff (D) for Senator of California (won)
–Endorsed Angela Alsobrooks (D) for Senator of Maryland (won)
–Endorsed Judy Chu (D) for Representative of California, 28th District (won)
–Endorsed Gil Cisneros (D) for Representative of California, 31st District (won)
–Endorsed Frank Mrvan (D) for Representative of Indiana, 1st District (won)
–Endorsed Johnny Olszewski (D) for Representative of Maryland, 2nd District (won)
–Endorsed Sarah Elfreth (D) for Representative of Maryland, 3rd District (won)
–Endorsed April McClain Delaney (D) for Representative of Maryland, 6th District (won)
–Endorsed Curtis Hertel, Jr. (D) for Representative of Michigan, 7th District (lost general election)
–Endorsed Kristen McDonald Rivet (D) for Representative of Michigan, 8th District (won)
–Endorsed Kelly Morrison (D) for Representative of Minnesota, 3rd District (won)
–Endorsed Tony Vargas (D) for Representative of Nebraska, 2nd District (lost general election)
–Endorsed Josh Riley (D) for Representative of New York, 19th District (won)
–Endorsed Andrea Salinas (D) for Representative of Oregon, 6th District (won)
–Endorsed Janelle Stelson (D) for Representative of Pennsylvania, 10th District (lost general election)
–Endorsed Preston Nouri (D) for Representative of Pennsylvania, 16th District (lost general election)
–Endorsed Greg Casar (D) for Representative of Texas, 35th District (won)
2025
–Endorsed Adelita Grijalva (D) for Representative of Arizona, 7th District (won)
The Endorsement Project 