Most forerunner parts of the seat of Wentworth (which only existed in its second period from 1983 until 2010) matched its record of being a safe seat for Labour. However, since the 2019 general election the seat has become a marginal between Labour and Conservative Party. Labour's majority over the Conservatives currently stands at 2,165. Labour's vote share declined by 24.7% at the 2019 election, the second worst decline in vote share it suffered in any of the 630 constituencies that the party contested at that election (only being surpassed by the 24.9% decline in the Labour vote in Bassetlaw).