Copeland elections since 1983
Labour's decline long predates Jeremy Corbyn's leadership
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
20,000
22,000
24,000
1983
1987
1992
1997
2001
2005
2010
2015
2017
Corbyn's
leadershp
Conservative
Labour
Lib Dems
Other
Conservative
Labour
Lib Dems
Other