A single ballot box served Dedeli-Caybasi at the 2023 parliamentary election, with 275 registered voters; that places it 63rd among the 122 localities of Patnos.
159 people voted at that election. Yeşil Sol Parti took the most votes with 89; AK Parti followed with 42. Yeşil Sol Parti's share here is 4.6 points above the district average. In the presidential runoff, 69 of 120 valid votes went to Kemal Kılıçdaroğlu — 14.9 points below the district average.
Turnout at the 2024 local election was 89.5%, 21.7 points above the district average. The tightest race came at the 2024 local election: DEM Parti took 78 votes to Yeniden Refah's 67 — a margin of just 11 votes. At the 2024 local election the neighborhood went to DEM Parti with 78 votes, while Patnos as a whole was won by AK Parti. First place has changed hands 3 times here since 2023.