Class 2Class 2 U.S. senators belong to the electoral cycle that has recently been contested in2002,2008,2014, and2020. The next election will be in2026. | C | Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in2004,2010,2016, and2022. The next election will be in2028. |
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| # | Senator | Party | Dates in office | Electoral history | T | T | Electoral history | Dates in office | Party | Senator | # |
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| 1 |  Bob Bartlett (Fairbanks) | Democratic | Jan 3, 1959 – Dec 11, 1968 | Elected in 1958. | 1 | 86th | 1 | Elected in 1958. | Jan 3, 1959 – Jan 3, 1969 | Democratic |  Ernest Gruening (Juneau) | 1 |
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| Re-elected in 1960. | 2 | 87th |
| 88th | 2 | Re-elected in 1962.Lost renomination and then lostre-election as a write-in candidate. |
| 89th |
| Re-elected in 1966.Died. | 3 | 90th |
| Vacant | Dec 11, 1968 – Dec 24, 1968 | |
| 2 |  Ted Stevens (Anchorage) | Republican | Dec 24, 1968 – Jan 3, 2009 | Appointed to continue Bartlett's term.Elected in 1970 to finish Bartlett's term. |
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| 91st | 3 | Elected in 1968. | Jan 3, 1969 – Jan 3, 1981 | Democratic |  Mike Gravel (Anchorage) | 2 |
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| 92nd |
| Re-elected in 1972. | 4 | 93rd |
| 94th | 4 | Re-elected in 1974.Lost renomination. |
| 95th |
| Re-elected in 1978. | 5 | 96th |
| 97th | 5 | Elected in 1980. | Jan 3, 1981 – Dec 2, 2002 | Republican |  Frank Murkowski (Ketchikan) | 3 |
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| 98th |
| Re-elected in 1984. | 6 | 99th |
| 100th | 6 | Re-elected in 1986. |
| 101st |
| Re-elected in 1990. | 7 | 102nd |
| 103rd | 7 | Re-elected in 1992. |
| 104th |
| Re-elected in 1996. | 8 | 105th |
| 106th | 8 | Re-elected in 1998.Resigned whenelected Governor of Alaska. |
| 107th |
| | Dec 2, 2002 – Dec 20, 2002 | Vacant |
| Appointed to finish her father's term. | Dec 20, 2002 – present | Republican |  Lisa Murkowski (Girdwood) | 4 |
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| Re-elected in 2002.Lost re-election. | 9 | 108th |
| 109th | 9 | Elected to a full term in 2004. |
| 110th |
| 3 |  Mark Begich (Anchorage) | Democratic | Jan 3, 2009 – Jan 3, 2015 | Elected in 2008.Lost re-election. | 10 | 111th |
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| 112th | 10 | Lost renomination, but re-elected as a write-in candidate in 2010. |
| 113th |
| 4 |  Dan Sullivan (Anchorage) | Republican | Jan 3, 2015 – present | Elected in 2014. | 11 | 114th |
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| 115th | 11 | Re-elected in 2016. |
| 116th |
| Re-elected in 2020. | 12 | 117th |
| 118th | 12 | Re-elected in 2022 in an instant runoff election. |
| 119th |
| To be determined in the2026 election. | 13 | 120th |
| 121st | 13 | To be determined in the2028 election. |
| # | Senator | Party | Years in office | Electoral history | T | C | T | Electoral history | Years in office | Party | Senator | # |
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| Class 2 | Class 3 |
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