sentences:  The Conservatives and Labour both fell back by more than 15% of the vote and dropped to second and third positions respectively.For Labour, Backhouse took less than 10% of the vote and lost his deposit, while none of the other candidates achieved 1% of the votes cast.Jenkins won another seat for the SDP at the Glasgow Hillhead by-election in 1982, but the party suffered setbacks at the 1983 general election, and Williams lost Crosby to a new Conservative candidate aided by the fact that boundary changes had been implemented bringing Aintree into the constituency in place of Waterloo and Seaforth (which transferred to Bootle Constituency).