Alistair Carmichael is the longest-serving Liberal Democrat MP currently in parliament, having been first elected in June 2001. He has participated in 282 votes from 575 eligible divisions, achieving a 49.04% participation rate and ranking 335th overall among active MPs, while contributing 334 debate contributions across 185 debates and ranking 174th overall. His debate contributions are notably more prominent than his voting participation, with his top debate topics being Foreign Affairs and Defence, Trade and Industry, and Food and Agriculture. He holds no current government post.

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