Sir Iain Duncan Smith is one of the longest-serving MPs in Parliament, having been first elected in April 1992, and is the third longest-serving Conservative MP. His parliamentary activity shows a marked divergence between his voting and debate contributions, with a relatively low voting participation rate of 48.16% placing him 356th overall, while his 390 debate contributions rank him 140th overall and first among MPs elected in 1992. His debate contributions have focused primarily on Foreign Affairs and Defence, International Development, and Justice and Law matters. Despite not holding a government post, his substantially higher ranking in debates compared to voting suggests he has been more active in the chamber's spoken proceedings than in formal divisions.

Summary generated on 08/05/2026 (View details)