2024Final results
2024 election for Idaho Legislative District 20
Idaho State Senate · Idaho
Josh Keyser (R) won with 69.6% of the vote, defeating Andy Arriaga (D) by 39.2 points.
Josh KeyserRepublican · winner
69.6%18,971
Andy ArriagaDemocrat
30.4%8,281
The same year, the district voted R+32.1 for president; this race was R+39.2.27,252 votes
Source: Idaho Secretary of StateUpdated Oct 1, 2026, 6:08 AM ET
The seat over time
D − R margin in this seat's races around 2024
Races before and after
Source: Idaho Secretary of StateUpdated Oct 1, 2026, 6:08 AM ET