The 2020 Arabin Senate elctions will be held on December 5, 2020, with the 11 class 1 seats of the Senate being contested in regular elections. The winners will be elected to six-year terms starting from January 5, 2021, to January 5, 2027.
Incumbent Democrat Poppy Smith was first elected in 2008, defeating incumbent Maureen Rivera. Smith is running for her third term.
On June 20, 2020, Smith won the nomination for the Democratic Party while Representative from Burberry's 2nd district, Christina Tyson won the nomination for the Republican Party.
Incumbent Democrat Henry Carpenter was first elected in 2008, defeating incumbent Robert Ferguson. Carpenter is running for his third term.
On May 2, 2020, Carpenter won the nomination for the Democratic Party while former governor of Dartmoor, Nelson Walls, won the nomination for the Republican Party.
Incumbent Republican Spencer Pickering was first elected in 2002, defeating incumbent Justin Price. Pickering is running for his fourth term.
On July 11, 2020, Pickering won the nomination for the Republican Party, while Dellcourt State Senator, Melissa Jurgens won the nomination for the Democratic Party.
Incumbent Democrat Lola Fry was first elected in 2008, defeating incumbent Harvey Humphreys. On February 3, 2020, Fry announced her intention to run for Governor of Lochcoast and would not seek a third term in the Senate. The primaries in Lochcoast were on August 1, 2020. State Senators Michael Sykes (D) and Kenneth Tyler (R) won their respective party primaries.
Incumbent Republican Andrew Clegg was elected as a Conservative Socialist in 2014, defeating Liberal Socialist nominee Evan Goodwin. He is running for a second term. The primaries in New Bristol were on March 28, 2020. Incumbent Senator Andrew Clegg (R) and former Arabin Representative Brynn Bilderback (D) won their respective party primaries.
Incumbent Democrat Winnie Kimes was elected as a Liberal Socialist in 2014. She ran for a second term but ultimately lost in the primary election to John Freeman IV. The primary election in New Cambridge was on April 4, 2020. John Freeman IV (D) and Ryan Wyatt (R) won their repsective party primaries.
Incumbent Democrat Michael Fuller was elected as a Liberal Socialist in 2002. He is running for his fourth term. The primary election in New Plymouth was on July 4, 2020. Incumbent Michael Fuller (D) and Charlotte Marshall (R) won their respective party primaries.
Incumbent Democrat David Coffman was elected as a Liberal Socialist in 2002. He is running for his fourth term. The primary election in Owens was on August 29, 2020. Incumbent David Coffman (D) and Dwight Richman (R) won their respective party primaries.
Incumbent Democrat Mary Nichols was elected as a Liberal Socialist in 2002. She is running for her fourth term. The primary election in Saint George was on May 9, 2020. Incumbent Mary Nichols (D) and Sean Whitehouse (R) won their respective party primaries.
Incumbent Democrat Amber Holmes was elected as a Liberal Socialist in 2002. She is running for her fourth term. The primary election in Severn was September 12, 2020. Incumbent Amber Holmes (D) and Luca Doyle (R) won their respective primaries.
Incumbent Republican Lucien Orton was elected as a Conservative Socialist in 2002. He is running for his fourth term. The primary election in Windsor was on August 1, 2020. Incumbent Lucien Orton (R) and Joan Matthews (D) won their respective party primaries.