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2020 United States Senate special election in Arizona facts for kids

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See also: 2020 United States Senate elections
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2020 United States Senate special election in Arizona

← 2016 November 3, 2020 2022 →
  SenatorKellyOfficialPhoto (cropped 2).jpg Sen. Martha McSally official Senate headshot 116th congress (cropped).jpg
Nominee Mark Kelly Martha McSally
Party Democrat Republican
Popular vote 1,716,467 1,637,661
Percentage 51.17% 48.82%

2020 Arizona Senate Results by County.svg
County results
Kelly:      50-60%      60-70%      70-80%
McSally:      50-60%      60-70%      70-80%

U.S. Senator before election

Martha McSally

Elected U.S. Senator

Mark Kelly

A special election happened on November 3, 2020 to elect a Senator from the U.S. state of Arizona. It happened because the last senator, John McCain, died in 2018. Primary elections happened on August 4, 2020 to choose who would run for the election from each party. The Republican Party chose Martha McSally. She beat Daniel McCarthy to be the Republican candidate. Only one person, Mark Kelly, ran for the Democratic Party.

Kelly won the election and got 51.2% of the votes, so he became the junior senator from Arizona. This meant both Senators from Arizona were now from the Democratic Party. He officially became a senator on December 2, 2020 when he was sworn in.

Democratic Party primary

Democratic primary results
Party Candidate Votes %
Democrat Mark Kelly 665,620 99.93%
Democrat Bo Garcia (write-in) 451 0.07%
Total votes 666,071 100.0%

Republican Party primary

Arizona U.S. Senate Republican primary, 2020
Results by county:      McSally—80–90%      McSally—70–80%      McSally—60–70%
Republican primary results
Party Candidate Votes %
Republican Martha McSally (incumbent) 551,119 75.20%
Republican Daniel McCarthy 181,551 24.77%
Republican Sean Lyons (write-in) 210 0.03%
Total votes 732,880 100.0%

Libertarian Party primary

None of the Libertarian Party candidates got enough votes in the primary to be in the Senate election.

Libertarian primary results
Party Candidate Votes %
Libertarian Barry Hess (write-in) 329 76.51%
Libertarian Alan White (write-in) 101 23.49%
Total votes 430 100.0%



2020 United States Senate Special election in Arizona
Party Candidate Votes % ±%
Democrat Mark Kelly 1,716,467 51.17% +10.42%
Republican Martha McSally (incumbent) 1,637,661 48.82% -4.89%
Write-in 1,189 0.03% -0.03%
Total votes 3,355,317 100.00%
Democrat gain from Republican
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