Political party strength in Iowa

The following table indicates the party of elected officials in the U.S. state of Iowa:

The table also indicates the historical party composition in the:

For years in which a presidential election was held, the table indicates which party's nominees received the state's electoral votes.

1846–1920

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Year Executive offices General Assembly United States Congress Electoral votes
Governor Lt. Governor Sec. of State Attorney Gen. Auditor Treasurer State Senate State House U.S. Senator
(Class II)
U.S. Senator
(Class III)
U.S. House
1846 Ansel Briggs (D) no such office Elisha Cutler Jr. (D) no such office Joseph T. Fales (D) Morgan Reno (D) 12D, 6W 23W, 17D 2D
1847 George Wallace Jones (D) Augustus C. Dodge (D)
1848 Josiah H. Bonney (D) Lewis Cass/
William O. Butler (D)  N
1849 11D, 8W 28D, 11W 1D, 1W
1850 George W. McCleary (D) William Pattee (D) Israel Kister (D)
1851 Stephen P. Hempstead (D) 13D, 5W 34D, 5W 2D
1852 Martin L. Morris (D) Franklin Pierce/
William R. King (D)  Y
1853 David C. Cloud (D) 20D, 11W 40D, 23W 1D, 1W
1854 Andrew J. Stevens (W)
1855 James W. Grimes (W) John Pattee (R) 17D, 14W 40W, 31D James Harlan (FS)
1856 Elijah Sells (R) Samuel Allen Rice (R) John C. Frémont/
William L. Dayton (R)  N
1857 23R, 12D 44R, 26D James Harlan (R) 2R
1858 Ralph P. Lowe (R) Oran Faville (R) 22R, 14D[a] 42R, 30D[a]
1859 Jonathan W. Battel (R) John W. Jones (R) James W. Grimes (R)
1860 Samuel J. Kirkwood (R) Nicholas J. Rusch (R) 23R, 20D 49R, 37D Abraham Lincoln/
Hannibal Hamlin (R)  Y
1861 Charles C. Nourse (R)
1862 John R. Needham (R) 32R, 14D 60R, 34D
1863 James Wright (R) William H. Holmes (R) 6R
1864 William M. Stone (R) Enoch W. Eastman (R) 42R, 4D 87R, 5D Abraham Lincoln/
Andrew Johnson (NU)  Y
1865 Isaac L. Allen (R) John A. Elliott (R) Samuel J. Kirkwood (R)
1866 Benjamin F. Gue (R) Frederick E. Bissell (R) 42R, 5D 83R, 15D
1867 Ed Wright (R) Henry O'Connor (R) Samuel E. Rankin (R) James Harlan (R)
1868 Samuel Merrill (R) John Scott (R) 42R, 7D 86R, 14D Ulysses S. Grant/
Schuyler Colfax (R)  Y
1869
1870 Madison Miner Walden (R) 43R, 7D James B. Howell (R)
1871 Henry C. Bulis (R) John Russell (R) George G. Wright (R)
1872 Cyrus C. Carpenter (R) Marsena E. Cutts (R) 42R, 8D 78R, 22D Ulysses S. Grant/
Henry Wilson (R)  Y
1873 Josiah T. Young (R) William Christy (R) William B. Allison (R) 9R
1874 Joseph Dysart (R) 34R, 10I, 6D 50R, 44I, 6D[b]
1875 Buren R. Sherman (R) 8R, 1D
1876 Samuel J. Kirkwood (R)[c] Joshua G. Newbold (R) 41R, 9D 70R, 30D Rutherford B. Hayes/
William A. Wheeler (R)  Y
1877 John F. McJunkin (R) George W. Bemis (R) Samuel J. Kirkwood (R) 9R
Joshua G. Newbold (R)[d] vacant
1878 John H. Gear (R) Frank T. Campbell (R) 38R, 12D 73R, 25D, 2GB
1879 John A. T. Hull (R) 7R, 2GB
1880 41R, 7D, 2GB 82R, 14D, 4GB James A. Garfield/
Chester A. Arthur (R)  Y
1881 Smith McPherson (R) William V. Lucas (R) Edwin H. Conger (R) James W. McDill (R) 9R
1882 Buren R. Sherman (R) Orlando H. Manning (R) 46R, 2D, 2GB 71R, 22D, 7GB
1883 John L. Brown (R) James F. Wilson (R) 8R, 2D, 1GB
1884 39R, 11D 52R, 42D, 6GB 6R, 4D, 1GB James G. Blaine/
John A. Logan (R)  N
1885 Frank D. Jackson (R) Andrew J. Baker (R) Jonathan W. Battell (R) Voltaire P. Twombly (R) 7R, 2D, 1G
1886 William Larrabee (R) John A. T. Hull (R) Charles Beardsley (R) 31R, 19D 60R, 39D, 1I
1887 John L. Brown (R) 8R, 1D, 1GB, 1IR
1888 Hames A. Lyons (R) 35R, 15D 64R, 33D, 3I Benjamin Harrison/
Levi P. Morton (R)  Y
1889 John Young Stone (R) 10R, 1D
1890 Horace Boies (D) Alfred N. Poyneer (R) 28R, 20D, 1UL, 1I 50D, 45R, 4I, 1UL[e]
1891 William M. McFarland (R) Byron A. Beeson (R) 6D, 5R
1892 Samuel L. Bestow (D) 25D, 24R, 1Pop[f] 54R, 45D, 1I Benjamin Harrison/
Whitelaw Reid (R)  N
1893 Cornelius G. McCarthy (R) 10R, 1D
1894 Frank D. Jackson (R) Warren S. Dungan (R) 34R, 16D 79R, 21D
1895 Milton Remley (R) John Herriott (R) John H. Gear (R) 11R
1896 Francis M. Drake (R) Matt Parrott (R) 43R, 7D 80R, 20D William McKinley/
Garret Hobart (R)  Y
1897 George L. Dobson (R)
1898 L. M. Shaw (R) James C. Milliman (R) 39R, 11D 62R, 38D
1899 Frank Merriam (R)
1900 42R, 8D 81R, 19D William McKinley/
Theodore Roosevelt (R)  Y
1901 William B. Martin (R) Charles W. Mullan (R) Gilbert S. Gilbertson (R) Jonathan P. Dolliver (R)
1902 Albert B. Cummins (R)[c] John Herriott (R) 39R, 11D 84R, 16D
1903 Beryl F. Carroll (R) 10R, 1D
1904 42R, 8D 78R, 22D Theodore Roosevelt/
Charles W. Fairbanks (R)  Y
1905 11R
1906 40R, 10D[g] 82R, 18D[g]
1907 Warren Garst (R) William C. Hayward (R) John F. Riggs Willison W. Morrow (R) 36R, 14D 75R, 33D 10R, 1D
1908 William Howard Taft/
James S. Sherman (R)  Y
Warren Garst (R)[d] vacant
1909 Beryl F. Carroll (R) George W. Clarke (R) Howard Webster Byers (R) John L. Bleakly (R) 34R, 16D 80R, 28D Albert B. Cummins (R)
1910 Lafayette Young (R)
1911 George Cosson (R) 70R, 38D
1912 William S. Kenyon (R) Woodrow Wilson/
Thomas R. Marshall (D)  Y
1913 George W. Clarke (R) William L. Harding (R) William S. Allen (R) William C. Brown (R) 33R, 17D 66R, 42D 8R, 3D
1914
1915 Frank S. Shaw (R) 35R, 15D 76R, 32D 10R, 1D
1916 Charles Evans Hughes/
Charles W. Fairbanks (R)  N
1917 William L. Harding (R) Ernest Robert Moore (R) H. M. Havner (R) Edwin H. Hoyt (R) 40R, 10D 94R, 14D 11R
1918
1919 Walter C. Ramsay (R) 45R, 5D 93R, 15D
1920 Warren G. Harding/
Calvin Coolidge (R)  Y

1921–present

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Year Executive offices General Assembly United States Congress Electoral
votes
Governor Lt. Governor Sec. of State Attorney Gen. Auditor Treasurer Sec. of Ag. State
Senate
State
House
U.S. Senator
(Class II)
U.S. Senator
(Class III)
U.S.
House
1921 Nathan E. Kendall (R) John Hammill (R) Walter C. Ramsay (R) Ben Gibson (R) Glenn C. Haynes (R) William J. Burbank (R) no such office 48R, 2D 101R, 6D, 1I William S. Kenyon (R) Albert B. Cummins (R) 11R
1922 Smith W. Brookhart (R)
1923 Raymond W. Cassidy (R) 46R, 4D 91R, 16D, 1I
1924 James E. Thomas (R) R. G. Clark (R) Calvin Coolidge/
Charles G. Dawes (R)  Y
1925 John Hammill (R) Clem F. Kimball (R) J. C. McClune (R) Raymond E. Johnson (R) Mark G. Thornburg (R) 45R, 4D, 1I 101R, 7D
1926 Daniel F. Steck (D)
1927 John Fletcher (R) J. W. Long (R) 48R, 1D, 1ID 95R, 13D Smith W. Brookhart (R)
1928 Arch W. McFarlane (R) Edward McMurray Smith (R) Herbert Hoover/
Charles Curtis (R)  Y
1929 48R, 2D 96R, 12D
1930
1931 Dan W. Turner (R) G. C. Greenwalt (R) 44R, 6D 71R, 37D L. J. Dickinson (R) 10R, 1D
1932 C. Fred Porter (R) Franklin D. Roosevelt/
John Nance Garner (D)  Y
1933 Clyde L. Herring (D) Nelson G. Kraschel (D) Ola Babcock Miller (D) Edward L. O'Connor (D) Charles W. Storms (D) Leo J. Wegman (D) Ray Murray (D) 25D, 25R[h] 76D, 32R Louis Murphy (D) 6D, 3R
1934
1935 28D, 22R 58D, 50R
1936
1937 Nelson G. Kraschel (D) John K. Valentine (D) Robert E. O'Brien (D) John H. Mitchell (D) Thomas L. Curran (D) 54D, 54R[i] Clyde L. Herring (D) Guy Gillette (D) 5D, 4R
1938
1939 George A. Wilson (R) Bourke B. Hickenlooper (R) Earl G. Miller (R) Fred D. Everett (R) C. B. (Chet) Akers (R) Willis Bagley (R) Mark G. Thornburg (R) 38R, 12D 89R, 19D 7R, 2D
1940 Wendell Willkie/
Charles L. McNary (R)  N
1941 John M. Rankin (R) 45R, 5D 87R, 21D
1942 8R, 1D
1943 Bourke B. Hickenlooper (R) Robert D. Blue (R) Wayne M. Ropes (R) John M. Grimes (R) Harry D. Linn (R) 98R, 10D George A. Wilson (R) 8R
1944 Thomas E. Dewey/
John W. Bricker (R)  N
1945 Robert D. Blue (R) Kenneth A. Evans (R) 91R, 17D Bourke B. Hickenlooper (R)
1946
1947 Rolo H. Bergeson (R) Robert L. Larson (R) 44R, 6D 98R, 10D
1948 Harry S. Truman/
Alben W. Barkley (D)  Y
1949 William S. Beardsley (R)[j] Melvin D. Synhorst (R) 43R, 7D 79R, 29D Guy Gillette (D)
1950 Clyde Spry (R)
1951 William H. Nicholas (R) M. L. Abrahamson (R) 41R, 9D 93R, 15D
1952 Dwight D. Eisenhower/
Richard Nixon (R)  Y
1953 Leo Elthon (R)[d] Leo Hoegh (R) 46R, 4D 105R, 3D
1954
1955 Leo Hoegh (R) Dayton Countryman (R) 44R, 6D 90R, 18D Thomas E. Martin (R)
1956
1957 Herschel C. Loveless (D) William H. Nicholas (R) Norman A. Erbe (R) 40R, 10D 71R, 37D 7R, 1D
1958
1959 Edward J. McManus (D) 33R, 17D 58R, 50D 4D, 4R
1960 5R, 3D Richard Nixon/
Henry Cabot Lodge Jr. (R)  N
1961 Norman A. Erbe (R) W. L. Mooty (R) Evan Hultman (R) L. B. Liddy (R) 35R, 15D 78R, 30D Jack Miller (R) 6R, 2D
1962
1963 Harold Hughes (D)[c] 38R, 12D 6R, 1D
1964 Lyndon B. Johnson/
Hubert Humphrey (D)  Y
1965 Robert D. Fulton (D) Gary L. Cameron (D) Lawrence F. Scalise (D) Lorne R. Worthington (D) Paul Franzenburg (D) Kenneth E. Owen (D) 34D, 25R 101D, 23R 6D, 1R
1966
1967 Melvin D. Synhorst (R)[k] Richard C. Turner (R) Lloyd R. Smith (R) L. B. Liddy (R) 32D, 29R 89R, 35D 5R, 2D
1968 Richard Nixon/
Spiro Agnew (R)  Y
1969 Robert D. Ray (R) Roger Jepsen (R) Maurice E. Baringer (R) 44R, 17D 86R, 38D Harold Hughes (D)
1970
1971 38R, 12D 63R, 37D
1972
1973 Arthur Neu (R) Robert H. Lounsberry (R) 28R, 22D 57R, 43D Dick Clark (D) 3D, 3R
1974
1975 26D, 24R 61D, 39R John Culver (D) 5D, 1R
1976 Gerald Ford/
Bob Dole (R)  N
1977 59D, 41R 4D, 2R
1978
1979 Terry Branstad (R) Tom Miller (D) Richard D. Johnson (R) 28R, 22D 57R, 43D Roger Jepsen (R) 3D, 3R
1980 Ronald Reagan/
George H. W. Bush (R)  Y
1981 Mary Jane Odell (R) 29R, 21D 58R, 42D Chuck Grassley (R)
1982
1983 Terry Branstad (R) Robert T. Anderson (D) Michael Fitzgerald (D) 28D, 22R 60D, 40R
1984
1985 29D, 21R Tom Harkin (D) 4R, 2D
1986
1987 Jo Ann Zimmerman (D) Elaine Baxter (D) Dale M. Cochran (D) 30D, 20R 58D, 42R
1988 Michael Dukakis/
Lloyd Bentsen (D)  N
1989 61D, 39R
1990
1991 Joy Corning (R) Bonnie Campbell (D) 28D, 22R 53D, 47R
1992 Bill Clinton/
Al Gore (D)  Y
1993 26D, 24R 51R, 49D 4R, 1D
1994
1995 Paul Pate (R) Tom Miller (D) 27D, 23R 64R, 36D 5R
1996
1997 29R, 21D 54R, 46D 4R, 1D
1998
1999 Tom Vilsack (D) Sally Pederson (D) Chet Culver (D) Patty Judge (D) 30R, 20D 56R, 44D
2000 Al Gore/
Joe Lieberman (D)  N
2001
2002
2003 David A. Vaudt (R) 29R, 21D 54R, 46D
2004 George W. Bush/
Dick Cheney (R)  Y
2005 25D, 25R 51R, 49D
2006
2007 Chet Culver (D) Patty Judge (D) Michael Mauro (D) Bill Northey (R)[l] 30D, 20R 54D, 46R 3D, 2R
2008 Barack Obama/
Joe Biden (D)  Y
2009 32D, 18R 57D, 43R
2010
2011 Terry Branstad (R)[m] Kim Reynolds (R) Matt Schultz (R) 26D, 24R 60R, 40D
2012
2013 53R, 46D, 1 vac. 2D, 2R
Mary Mosiman (R)
2014 53R, 47D
2015 Paul Pate (R) 57R, 43D Joni Ernst (R) 3R, 1D
2016 Donald Trump/
Mike Pence (R)  Y
2017 29R, 20D, 1I 59R, 41D
Kim Reynolds (R)[d] Adam Gregg (R)
2018 Mike Naig (R)
2019 Rob Sand (D) 32R, 18D 53R, 47D 3D, 1R
2020 Donald Trump/
Mike Pence (R)  N
2021 59R, 41D 3R, 1D
2022 60R, 40D[n]
2023 Brenna Bird (R) Roby Smith (R) 34R, 16D 64R, 36D 4R
2024 [to be determined]
Key to party colors and abbreviations for members of the U.S. Congress and other politicians or officials
Alaskan Independence (AKIP)
Know Nothing (KN)
American Labor (AL)
Anti-Jacksonian (Anti-J)
National Republican (NR)
Anti-Administration (AA)
Anti-Masonic (Anti-M)
Conservative (Con)
Covenant (Cov)
Democratic (D)
Democratic–Farmer–Labor (DFL)
Democratic–NPL (D-NPL)
Dixiecrat (Dix),
States' Rights (SR)
Democratic-Republican (DR)
Farmer–Labor (FL)
Federalist (F)
Pro-Administration (PA)
Free Soil (FS)
Fusion (Fus)
Greenback (GB)
Independence (IPM)
Independent Democrat (ID)
Independent Republican (IR)
Jacksonian (J)
Liberal (Lib)
Libertarian (L)
National Union (NU)
Nonpartisan League (NPL)
Nullifier (N)
Opposition Northern (O)
Opposition Southern (O)
Populist (Pop)
Progressive (Prog)
Prohibition (Proh)
Readjuster (Rea)
Republican (R)
Silver (Sv)
Silver Republican (SvR)
Socialist (Soc)
Union (U)
Unconditional Union (UU)
Vermont Progressive (VP)
Whig (W)
Independent (I)
Nonpartisan (NP)
  1. ^ a b The Iowa Constitution of 1857 moved the elections for state legislators from even years to odd years, making the 6th General Assembly only last one year in 1857 and the 7th last for two starting in 1858. Thus the terms of newly elected or current senators last only three years, and the terms of past or current representatives correspond to the duration of both.
  2. ^ After 137 ballots, the Republicans and the Independent Anti-Monopolists with the Democrats, struck a deal on the evening of the 22nd of January, 1874. The Republicans controlled the Speakership under John H. Gear, but the Anti-Monopolists and Democrats controlled most of the minor offices, all standing committees' membership were split 50-50 including dual chairmen, and the investigation committees were run and led by the Anti-Monopolist coalition.[1][2]
  3. ^ a b c Resigned to take an elected seat in the United States Senate.
  4. ^ a b c d As lieutenant governor, filled unexpired term.
  5. ^ After 137 ballots, the Republicans and Democrats came to an agreement where the Democrats got the Speakership under John T. Hamilton, while the Republicans got the seat of Speaker pro Tempore, and the committees and minor offices were split.[3][4]
  6. ^ With a Democratic Lt. Governor in Samuel L. Bestow who was also President of the Senate, the Democrats had the tie breaking vote, chose M.J. Kelly as President Pro Tempore, and organized the chamber.[5]
  7. ^ a b A constitutional amendment in 1905 moved the elections for state legislators from odd years to even years, making the 31st General Assembly only last one year. Thus, the terms of newly elected or current senators lasted only three years, and the terms of newly elected representatives lasted only one year (except for those elected in 1906, whose terms lasted two years.
  8. ^ The Republicans acquiesced to a Democratic President Pro Tempore, Irving H. Knudson, by unanimous consent. The Senate itself was organized on mostly bipartisan lines.[6]
  9. ^ A Republican voted with the Democrats to elect a Democratic Speaker, LaMar Foster. Democrats were thus able to organize and control the House.[7]
  10. ^ Died in office.
  11. ^ Resigned.
  12. ^ Resigned after U.S. Senate confirmation as United States Under Secretary of Agriculture for Farm and Foreign Agricultural Services.
  13. ^ Resigned upon U.S. Senate confirmation to be the ambassador to China.
  14. ^ Jon Dunwell won a special election in the 29th district on October 12, 2021, flipping it from Democratic to Republican.

References

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  1. ^ Upham, Cyril B. (1919). The Speaker of the House of Representatives in Iowa. University of Iowa. pp. 42–43.
  2. ^ p. 47-53
  3. ^ p. 82-88
  4. ^ Upham, Cyril B. (1919). The Speaker of the House of Representatives in Iowa. University of Iowa. p. 43.
  5. ^ p. 59
  6. ^ p. 4-5, 74-77
  7. ^ Journal of the House of the General Assembly of the State of Iowa. Iowa General Assembly. 1937. pp. 24–25.

Further reading

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  • Meyer, Theodoric. "Two Iowa counties an hour apart show America’s growing political divide: Rural Decatur County has moved sharply red, while suburban Dallas County has shifted the other direction" Washington Post Jan 12, 2024, online

See also

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