But if Corbyn is the reason, why are the Tories not surging ahead? That is the really pertinent question
Er no it really is not the pertinent question.
a poorly performing opposition party isnt going to create a surge in rating for a poorly performing government in power........
The other way round though...yes, it is pretty common for an opposition party to surge ahead in the polls mid term as government in power gets in trouble with the way it performs on issues