Johnson cannot afford to alienate so many of his colleagues – especially if the Tiverton and Honiton by-election leaves them even jumpier.
Ability, popularity with colleagues and specialist knowledge seem to have mattered more in these elections than intake or ideology.
Brexit brings unique challenges and opportunities. And my background in campaigning on environmental issues equips me for the job.
I am tabling vital amendments to the Bill. Efforts to reduce toxic pollution should not be on the backburner.