Social Democratic Party
Small British party led by William Clouston, standing in the 13 August Clacton by-election.
The SDP, led by William Clouston, is fielding a candidate at the 13 August Clacton by-election, a rare national platform after nominations closed 17 July with four of the seat's usual big parties absent.
Last refreshed: 3 August 2026 · Appears in 1 active topic
Can the SDP make a mark in the crowded Clacton by-election?
Timeline for Social Democratic Party
Clacton draws a record 34 candidates
UK Local Elections 2026Mentioned in: Clacton's ballot paper splits the right four ways
UK Local Elections 2026Background
The Social Democratic Party (SDP) is a small British party led by William Clouston, distinct from the historic party of the same name that Labour defectors founded in 1981 and that merged into the Liberal Democrats in 1988, and unrelated to Germany's SPD. It positions itself as economically interventionist and communitarian while opposing mass immigration, and typically fields candidates in only a handful of seats.
Clacton gave it a rare opening: with the seat's usual big-party rivals sitting the contest out, the SDP was one of 34 names on the ballot paper when nominations closed on 17 July 2026, its most prominent outing in years and a chance to be judged against a crowd of right-of-Reform and independent challengers rather than against Labour or the Conservatives.
Is the SDP standing in the Clacton by-election?
Is the SDP the same as Germany's SPD?
Is today's SDP the same party from the 1980s?
Who leads the Social Democratic Party?
Is the Social Democratic Party the same as the 1980s SDP?
Why is the Social Democratic Party contesting the Clacton by-election?
What does the Social Democratic Party stand for?
