Michael Gove. Er, meant to say:
"That 350 million we won't pay
Can go to nurses from abroad
With a Rights to Work Accord
Poor Brexit Bill

All change cost "Don't ya know"
Pay-back time 10 years or so
By which time the goalposts move
Deniers, liars, cannot prove
Poor Brexit Bill

This song will grow and linger long
The trolls are ever crying "wrong"
Let them show their faeced-faces
Guest has guessed, for his basis
Poor Brexit Bill