List of United States Senators from Iowa

Iowa was admitted to the Union on December 28, 1846. Its current Senators are Republicans Charles Grassley, who has served since 1981, and Joni Ernst, who has served since 2015.

List of Senators

Class 2

Class 1 U.S. Senators belong to the electoral cycle that were elected for two U.S. Congresses in the first elections of 1848, and then the seat was contested every three Congresses (six years) thereafter. The seat in recent years have been contested in 1996, 2002, 2008, and 2014. The next election will be in 2020.

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Class 3

Class 3 U.S. Senators belong to the electoral cycle that were elected for one United States Congress in the first elections of 1848, and then the seat was contested every three Congresses (six years) thereafter. The seat in recent years have been contested in 1998, 2004, and 2010. The next election will be in 2016.

# Senator Party Years in office Electoral history T
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Electoral history Years in office Party Senator #
Vacant December 28, 1846 –
December 7, 1848
Legislature failed to elect due to a three-way split that prevented any candidate from earning the required number of 30 legislators' votes.[1] 29th Congress Legislature failed to elect due to a three-way split that prevented any candidate from earning the required number of 30 legislators' votes.[1] December 28, 1846 –
December 7, 1848
Vacant
30th Congress
1
George W. Jones
Democratic December 7, 1848 –
March 3, 1859
Elected in 1848. 1 1 Elected in 1848. December 7, 1848 –
February 22, 1855
Democratic
Augustus C. Dodge
1
31st Congress 2 Re-elected in 1849.

Resigned to become U.S. Minister to Spain, having lost re-election.
32nd Congress
Re-elected in 1852.

Lost renomination.
2 33rd Congress
  February 22, 1855 –
March 3, 1855
Vacant
34th Congress 3 Elected in 1855.

Elected invalidated, as the Iowa Senate had not participated in it.
March 4, 1855 –
January 5, 1857
Free Soil
James Harlan
2
  January 5, 1857 –
January 29, 1857
Vacant
Re-elected to finish his vacant term. January 29, 1857 –
May 15, 1865
Republican
James Harlan
35th Congress
2
James W. Grimes
Republican March 4, 1859 –
December 6, 1869
Elected in 1858. 3 36th Congress
37th Congress 4 Re-elected in 1860.

Resigned to become U.S. Secretary of the Interior.
38th Congress
Re-elected in 1864.

Resigned due to ill health.
4 39th Congress
  May 15, 1865 –
January 13, 1866
Vacant
Elected to finish Harlan's term.

Retired.
January 13, 1866 –
March 3, 1867
Republican
Samuel J. Kirkwood
3
40th Congress 5 Elected in 1866 or 1867.

Lost re-election.
March 4, 1867 –
March 3, 1873
Republican
James Harlan
4
41st Congress
Vacant December 6, 1869 –
January 18, 1870
3
James B. Howell
Republican January 18, 1870 –
March 3, 1871
Elected to finish Grimes's term.

Retired.
4
George G. Wright
Republican March 4, 1871 –
March 3, 1877
Elected in 1870.

Retired.
5 42nd Congress
43rd Congress 6 Elected in 1872. March 4, 1873 –
August 4, 1908
Republican
William B. Allison
5
44th Congress
5
Samuel J. Kirkwood
Republican March 4, 1877 –
March 7, 1881
Elected in 1876.

Resigned to become U.S. Secretary of the Interior.
6 45th Congress
46th Congress 7 Re-elected in 1878.
47th Congress
6
James W. McDill
Republican March 8, 1881 –
March 3, 1883
Appointed to continue Kirkwood's term.

Elected in 1882 to finish Kirkwood's term.[2]

Retired.
7
James F. Wilson
Republican March 4, 1883 –
March 3, 1895
Elected in 1882. 7 48th Congress
49th Congress 8 Re-elected in 1884.
50th Congress
Re-elected in 1888.

Retired.
8 51st Congress
52nd Congress 9 Re-elected in 1890.
53rd Congress
8
John H. Gear
Republican March 4, 1895 –
July 14, 1900
Elected in 1894.

Died.
9 54th Congress
55th Congress 10 Re-elected in 1896.
56th Congress
Vacant July 14, 1900 –
August 22, 1900
9
Jonathan P. Dolliver
Republican August 22, 1900 –
October 15, 1910
Appointed to finish Gear's term.
Elected to full term in 1900 10 57th Congress
58th Congress 11 Re-elected in 1902.

Died.
59th Congress
Re-elected in 1906.

Died.
11 60th Congress
  August 4, 1908 –
November 24, 1908
Vacant
Appointed to finish Allison's term. November 24, 1908 –
July 30, 1926
Republican
Albert B. Cummins
6
61st Congress 12 Elected to full term in 1908
Vacant October 15, 1910 –
November 12, 1910
10
Lafayette Young
Republican November 12, 1910 –
April 11, 1911
Appointed to continue Dolliver's term.

Lost election to finish Dolliver's term.
11
William S. Kenyon
Republican April 12, 1911 –
February 24, 1922
Elected to finish Dolliver's term.
62nd Congress
Re-elected in 1912. 12 63rd Congress
64th Congress 13 Re-elected in 1914.
65th Congress
Re-elected in 1918.

Resigned to become Judge of the U.S. Court of Appeals.
13 66th Congress
67th Congress 14 Re-elected in 1920.

Lost renomination, then died.
12
Charles A. Rawson
Republican February 24, 1922 –
December 1, 1922
Appointed to continue Kenyon's term.

Retired when successor elected.
13
Smith W. Brookhart
Republican December 1, 1922 –
April 12, 1926
Elected to finish Kenyon's term.
68th Congress
Re-elected in 1924.

Lost election challenge.
14 69th Congress
14
Daniel F. Steck
Democratic April 12, 1926 –
March 3, 1931
Successfully challenged predecessor's election

Lost re-election.
  July 30, 1926 –
August 7, 1926
Vacant
Appointed to continue Cummins's term.

Elected to finish Cummins's term.

Retired.
August 7, 1926 –
March 3, 1927
Republican
David W. Stewart
7
70th Congress 15 Elected in 1926.

Lost renomination and then lost re-election as an Independent.
March 4, 1927 –
March 3, 1933
Republican
Smith W. Brookhart
8
71st Congress
15
Lester J. Dickinson
Republican March 4, 1931 –
January 3, 1937
Elected in 1930.

Lost re-election.
15 72nd Congress
73rd Congress 16 Elected in 1932.

Died.
March 4, 1933 –
July 16, 1936
Democratic
Richard L. Murphy
9
74th Congress
  July 16, 1936 –
November 3, 1936
Vacant
Elected to finish Murphy's term. November 3, 1936 –
January 3, 1945
Democratic
Guy Gillette
10
Vacant January 3, 1937 –
January 15, 1937
Successor failed to qualify until term as Governor ended. 16 75th Congress
16
Clyde L. Herring
Democratic January 15, 1937 –
January 3, 1943
Elected in 1936.

Lost re-election.
76th Congress 17 Re-elected in 1938.

Lost re-election.
77th Congress
Vacant January 3, 1943 –
January 14, 1943
  17 78th Congress
17
George A. Wilson
Republican January 14, 1943 –
January 3, 1949
Elected in 1942 but waited to finish gubernatorial term.

Lost re-election.
79th Congress 18 Elected in 1944. January 3, 1945 –
January 3, 1969
Republican
Bourke B. Hickenlooper
11
80th Congress
18
Guy Gillette
Democratic January 3, 1949 –
January 3, 1955
Elected in 1948.

Lost re-election.
18 81st Congress
82nd Congress 19 Re-elected in 1950.
83rd Congress
19
Thomas E. Martin
Republican January 3, 1955 –
January 3, 1961
Elected in 1954.

Retired.
19 84th Congress
85th Congress 20 Re-elected in 1956.
86th Congress
20
Jack Miller
Republican January 3, 1961 –
January 3, 1973
Elected in 1960. 20 87th Congress
88th Congress 21 Re-elected in 1962

Retired.
89th Congress
Re-elected in 1966.

Lost re-election.
21 90th Congress
91st Congress 22 Elected in 1968.

Retired.
January 3, 1969 –
January 3, 1975
Democratic
Harold Hughes
12
92nd Congress
21
Dick Clark
Democratic January 3, 1973 –
January 3, 1979
Elected in 1972.

Lost re-election.
22 93rd Congress
94th Congress 23 Elected in 1974.

Lost re-election.
January 3, 1975 –
January 3, 1981
Democratic
John Culver
13
95th Congress
22
Roger Jepsen
Republican January 3, 1979 –
January 3, 1985
Elected in 1978.

Lost re-election.
23 96th Congress
97th Congress 24 Elected in 1980. January 3, 1981 –
Present
Republican
Chuck Grassley
14
98th Congress
23
Tom Harkin
Democratic January 3, 1985 –
January 3, 2015
Elected in 1984. 24 99th Congress
100th Congress 25 Re-elected in 1986.
101st Congress
Re-elected in 1990. 25 102nd Congress
103rd Congress 26 Re-elected in 1992.
104th Congress
Re-elected in 1996. 26 105th Congress
106th Congress 27 Re-elected in 1998.
107th Congress
Re-elected in 2002. 27 108th Congress
109th Congress 28 Re-elected in 2004.
110th Congress
Re-elected in 2008

Retired.
28 111th Congress
112th Congress 29 Re-elected in 2010.
113th Congress
24
Joni Ernst
Republican January 3, 2015 –
Present
Elected in 2014. 29 114th Congress
115th Congress 30 To be determined in the 2016 election.
116th Congress
To be determined in the 2020 election. 30 117th Congress
# Senator Party Years in office Electoral history T
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  T
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Electoral history Years in office Party Senator #
Class 2 Class 3

Living former U.S. Senators from Iowa

As of April 2015, there are four living former U.S. Senators from Iowa who are, one from Class 2 and three from Class 3.

Senator Term of office Class Date of birth (and age)
Dick Clark 1973–1979 2 September 14, 1928
John Culver 1975–1981 3 August 8, 1932
Roger Jepsen 1979–1985 2 December 23, 1928
Tom Harkin 1985–2015 2 November 19, 1939

See also

References

  1. 1 2 Clark, p 17–46, 72–79
  2. Clark, p. 199
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