In 2022, Cleese spoke at the conference of the revival Social Democratic Party. Previously, he was a long-standing supporter of the Liberal Democrats and before that was a supporter of the original SDP after their formation in 1981. During the 1987 general election he recorded a party political broadcast for the SDP–Liberal Alliance, in which he advocated for the introduction of proportional representation. Cleese subsequently appeared in broadcasts for the Liberal Democrats in the 1997 general election and narrated a radio election broadcast for the party during the 2001 general election.
In 2022, Cleese spoke at the conference of the revival Social Democratic Party. Previously, he was a long-standin.g supporter of the Liberal Democrats and before that was a supporter of the original SDP after their formation in 1981. During the 1987 general election he recorded a party political broadcast for the SDP–Liberal Alliance, in which he advocated for the introduction of proportional representation. Cleese subsequently appeared in broadcasts for the Liberal Democrats in the 1997 general election and narrated a radio election broadcast for the party during the 2001 general election