safe seat

noun

1. a Parliamentary seat that at an election is sure to be held by the same party as held it before

Example Sentences

These include Josh Simons, who resigned as a party policy adviser after seven months under Mr Corbyn's tenure and is now its candidate in the safe seat of Makerfield.

From BBC

Gonzales has the support of some key Republicans who may be wary of ousting an incumbent from an ostensibly safe seat.

From Seattle Times

Labour is currently selecting its own candidate to run in what has traditionally been a safe seat for the party.

From BBC

With registered Democrats outnumbering Republicans by more than 2-to-1, it is considered a safe seat for Democrats.

From Seattle Times

Oh, look, another up-and-coming 36-year-old Republican in a safe seat is choosing to retire rather than spend any more time in the Capitol.

From Slate