Complete the following sentence: Rifkind first stood for Parliament, unsuccessfully, in 1970 in the Edinburgh Central constituency. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ During the leadership election in 1975, he supported Edward Heath in the first round but when Heath withdrew Rifkind voted for Margaret Thatcher.<unk> During the leadership election in 1975, he supported Edward Heath in the first round but when Heath withdrew Rifkind voted for Margaret Thatcher. Thatcher, upon becoming leader, appointed Rifkind an Opposition front-bench spokesman on Scottish Affairs. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Rifkind argued that, as, at that time, the Conservative Party supported the principle of a Scottish Assembly, it would have been preferable either to vote for the Second Reading of the Bill or to abstain, and try to improve the Bill. <unk> <unk> <unk> <unk>
Referendum on a Scottish Assembly, Rifkind voted in favour, but withdrew his support when the result of the referendum showed Scotland almost equally divided over the proposal.