The last non-Conservative member for the predecessor main seat was Sir Herbert Butcher (served 1937–1966) who for much of that time was in the
National Liberal Party set up in 1931. The member from 1966 until 1997 was
Richard Body for the main contributor seat (in later years as MP, knighted), who had previously been an MP during the Eden government and the
start of the Macmillan government for
Billericay, and later wrote assertive books on
agriculture and on the
Common Agricultural Policy. In the
2017 general election, the seat returned the highest vote share for the Conservatives nationally at 69.9%. In the
2019 general election, it was an extremely safe Conservative seat. It had the largest percentage majority, third-largest absolute majority, and third-largest Conservative vote share of any seat held by the party; nationally the seat had the eleventh-largest percentage majority of any constituency. ==Members of Parliament==