voter base; electoral stronghold; reliable source of votes
Political term for a geographic area or demographic group that reliably supports a particular candidate or party. Often used in election reporting.
This area has long been a voter base for the ruling party.
The candidate held a rally to solidify his local electoral stronghold.
The ruling party solidified its voter base in rural areas.
The opposition party tried to erode the ruling party's urban voter base.
This region has long been a reliable voter base for the ruling party.