For 10 points, name this Conservative Prime Minister from 1990 to 1997 who served between Margaret Thatcher and Tony Blair.
During this politician's tenure as leader of his country, Neil Hamilton and Tim Smith were implicated in the "Cash-for-Questions" scandal. This politician, who campaigned under a "Back to Basics" slogan, was succeeded as leader of his party by William Hague, and replaced Nigel Lawson as Chancellor of the Exchequer directly before ascending to the post of prime minister. This politician signed the (*) Downing Street Declaration with Albert Reynolds. On Black Wednesday, this prime minister's country withdrew from the European Exchange Rate Mechanism after the pound sterling crashed. For 10 points, name this Conservative Prime Minister from 1990 to 1997 who served between Margaret Thatcher and Tony Blair. 
During this politician's tenure as leader of his country, Neil Hamilton and Tim Smith were implicated in the "Cash-for-Questions" scandal.
Sir John Major