noun
double election
Refers to the simultaneous holding of two elections, typically for both houses of a bicameral legislature (e.g., lower and upper chambers). Often used in Japanese political contexts.
See also: 同時選挙
今年はダブル選挙が行われる可能性がある。
There is a possibility that a double election will be held this year.
ダブル
As a result of the double election, the government changed hands.