 The Conservatives managed to regain a lead in the opinion polls after this period, with polls also showing Major as the most popular Prime Minister since Harold Macmillan in the early 1960s.In spite of Labour Leader Neil Kinnock's repeated calls for an immediate general election after Major became Prime Minister, it wasn't until March 1992 that Major called an election for 9 April.Major took his campaign onto the streets, delivering many addresses from an upturned soapbox as he had done in his days on Lambeth Council.