However, the emergence of the Earl of Home as the new Leader of the Conservative Party and his appointment as Prime Minister on 19 October led to a sudden requirement to find him a seat in the House of Commons. Douglas-Home's Scottish ancestry made him look with particular interest at Kinross and West Perthshire; speculation earlier in the week had already linked him with it. On Sunday 20 October, Younger announced his offer to withdraw in favour of Home, an offer which was graciously accepted. Younger was later selected for Ayr, which he represented from 1964 to 1992. On 23 October, Home executed an instrument of disclaimer under the Peerage Act 1963, becoming Sir Alec Douglas-Home. The new session of Parliament was delayed to await the outcome of the by-election.