Neither of those should give comfort to the Conservatives. In Scotland the flight of Labour voters to the SNP was a protest against the Westminster establishment of professional careerist politicians remote from their electorates. That will not change to the Tories' advantage. In England Lib Dem voters were turned off by the participation of their Members of Parliament in the Coalition, which tainted them in the eyes of their former supporters. By 2020 they may well have got rid of that taint, recovered their former supporters and set out a stall to capture former Labour voters repelled by Corbyn.