Tom M
- 2010 – United States Senate (Alaska) (W/I) – lost
Melvin Joseph Maas
- 1926 – Minnesota’s 4th congressional district (R) – won
- 1928 – Minnesota’s 4th congressional district (R) – won
- 1930 – Minnesota’s 4th congressional district (R) – won
- 1932 – Minnesota’s at large congressional district (I) – lost
- 1934 – Minnesota’s 4th congressional district (R) – won
- 1936 – Minnesota’s 4th congressional district (R) – won
- 1938 – Minnesota’s 4th congressional district (R) – won
- 1940 – Minnesota’s 4th congressional district (R) – won
- 1942 – Minnesota’s 4th congressional district (R) – won
- 1944 – Minnesota’s 4th congressional district (R) – lost
Adolph Maassen
- 1944 – Wisconsin’s 9th congressional district (S) – lost
- 1946 – Wisconsin’s 9th congressional district (S) – lost
Randy Maatta
- 2006 – South Carolina’s 1st congressional district (D) – lost
Wallace F. Mabee
- 1936 – Maine’s 3rd congressional district (D) – lost
Lon Mabon
- 2002 – United States Senate (Oregon) (C) – lost
David L. MacAdam
- 1974 – New York’s 35th congressional district (Liberal) – lost
Michael Macaluso, Jr.
- 1976 – New York’s 35th congressional district (D) – lost
Thomas Charles MacArthur
- 2014 – New Jersey’s 3rd congressional district (R) – won
- 2016 – New Jersey’s 3rd congressional district (R) – won
- 2018 – New Jersey’s 3rd congressional district (R) – lost
Frances I. Macauley
- 1922 – Pennsylvania’s 2nd congressional district (Single Tax) – lost
Robert C. Macauly
- 1926 – United States Senate (Pennsylvania) (Com. Land) – lost
Bruce D. MacBain
- 1996 – New York’s 31st congressional district (D) – lost
Nicholas R. Macchio, Jr.
- 1972 – New York’s 16th congressional district (R) – lost
Kenneth R. MacCutcheon
- 2000 – Ohio’s 6th congressional district (L) – lost
Marilyn MacDermaid
- 2000 – Michigan’s 11th congressional district (G) – lost
James C. MacDevitt
- 1930 – New York’s 2nd congressional district (R) – lost
Alex MacDonald
- 2002 – North Carolina’s 13th congressional district (L) – lost
Andrew J. Macdonald
- 1922 – Missouri’s 13th congressional district (S) – lost
Clark MacDonald
- 1928 – Kentucky’s 2nd congressional district (R) – lost
Donald MacDonald
- 1926 – North Dakota’s 1st congressional district (I) – lost
Doug MacDonald
- 1996 – Michigan’s 8th congressional district (L) – lost
Guy MacDonald
- 1986 – United States Senate (Kansas) (D) – lost
John Wesley MacDonald
- 1930 – United States Senate (West Virginia) (Proh.) – lost
- 1936 – United States Senate (West Virginia) (Proh.) – lost
Marie MacDonald
- 1920 – New York’s 18th congressional district (S) – lost
Peter M. MacDonald
- 1940 – Maine’s 1st congressional district (D) – lost
- 1946 – United States Senate (Maine) (D) – lost
Robert MacDonald
- 1994 – Arizona’s 2nd congressional district (R) – lost
Torbert Hart MacDonald
- 1954 – Massachusetts’ 8th congressional district (D) – won
- 1956 – Massachusetts’ 8th congressional district (D) – won
- 1958 – Massachusetts’ 8th congressional district (D) – won
- 1960 – Massachusetts’ 8th congressional district (D) – won
- 1962 – Massachusetts’ 7th congressional district (D) – won
- 1964 – Massachusetts’ 7th congressional district (D) – won
- 1966 – Massachusetts’ 7th congressional district (D) – won
- 1968 – Massachusetts’ 7th congressional district (D) – won
- 1970 – Massachusetts’ 7th congressional district (D) – won
- 1972 – Massachusetts’ 7th congressional district (D) – won
- 1974 – Massachusetts’ 7th congressional district (D) – won
Robert S. MacDonough
- 1934 – Pennsylvania’s 14th congressional district (I, Proh.) – lost
Curtis D. MacDougall
- 1944 – Illinois’ 10th congressional district (D) – lost
Nancy Mace
- 2020 – South Carolina’s 1st congressional district (R) – won
- 2022 – South Carolina’s 1st congressional district (R) – won
Michael Macfarlane
- 2014 – Kentucky’s 3rd congressional district (R) – lost
William MacFarlane
- 1928 – New York’s 38th congressional district (I) – lost
John F. MacGovern
- 1990 – Massachusetts’ 5th congressional district (R) – lost
John MacGovern
- 2012 – United States Senate (Vermont) (R) – lost
Clarence MacGregor
- 1920 – New York’s 41st congressional district (R) – won
- 1922 – New York’s 41st congressional district (R) – won
- 1924 – New York’s 41st congressional district (R) – won
- 1926 – New York’s 41st congressional district (R) – won
Clark MacGregor
- 1960 – Minnesota’s 3rd congressional district (R) – won
- 1962 – Minnesota’s 3rd congressional district (R) – won
- 1964 – Minnesota’s 3rd congressional district (R) – won
- 1966 – Minnesota’s 3rd congressional district (R) – won
- 1968 – Minnesota’s 3rd congressional district (R) – won
- 1970 – United States Senate (Minnesota) (R) – lost
Paul Robert MacGregor
- 2000 – United States Senate (Georgia) (L) – lost
Steven Machat
- 2016 – United States Senate (Florida) (NPA) – lost
Jack Machek
- 2002 – Pennsylvania’s 18th congressional district (D) – lost
Hervey Gilbert Machen
- 1964 – Maryland’s 5th congressional district (D) – won
- 1966 – Maryland’s 5th congressional district (D) – won
- 1968 – Maryland’s 5th congressional district (D) – lost
Thaddeus Michael Machrowicz
- 1950 – Michigan’s 1st congressional district (D) – won
- 1952 – Michigan’s 1st congressional district (D) – won
- 1954 – Michigan’s 1st congressional district (D) – won
- 1956 – Michigan’s 1st congressional district (D) – won
- 1958 – Michigan’s 1st congressional district (D) – won
- 1960 – Michigan’s 1st congressional district (D) – won
Ronald Keith Machtley
- 1988 – Rhode Island’s 1st congressional district (R) – won
- 1990 – Rhode Island’s 1st congressional district (R) – won
- 1992 – Rhode Island’s 1st congressional district (R) – won
Hardy Macia
- 2012 – New Hampshire’s 2nd congressional district (L) – lost
Anton Frank Maciejewski
- 1938 – Illinois’ 6th congressional district (D) – won
- 1940 – Illinois’ 6th congressional district (D) – won
Lucien John Maciora
- 1940 – Connecticut’s at large congressional district (D) – won
- 1942 – Connecticut’s at large congressional district (D) – lost
Bill Mack
- 1970 – Ohio’s 21st congressional district (R) – lost
- 1974 – Ohio’s 21st congressional district (R) – lost
- 1978 – Ohio’s 21st congressional district (R) – lost
Charles Mack
- 1976 – New Jersey’s 10th congressional district (Labor) – lost
Edward J. Mack
- 1984 – Michigan’s 1st congressional district (R) – lost
Joseph S. Mack
- 1956 – Michigan’s 12th congressional district (D) – lost
- 1958 – Michigan’s 12th congressional district (D) – lost
Mansfield E. Mack
- 1934 – Washington’s 5th congressional district (S) – lost
