After coming second in
Warwick and Leamington in
1964, Spearing was elected as the Labour
Member of Parliament for
Acton at the
1970 general election, regaining a seat which the Labour Party had lost to the
Conservative Kenneth Baker in a
1968 by-election. Prior to the
February 1974 general election, the Acton constituency underwent major boundary changes and he was defeated in his bid for re-election by the Conservative Party candidate
George Young by 1,451 votes. Spearing then returned to parliament a few weeks later after winning the
Newham South by-election (caused by the constituency's MP,
Elwyn Jones, being made a
life peer in order to take on the role of
Lord Chancellor) with a majority of 9,321. Although he was interested in many issues, including transport, he devoted much of his time to campaigning against the EEC/EU, not least because he believed that 'many of the most pressing domestic political issues of the day could also be firmly connected with European Union institutions and directives.' ==Personal life and death==