What's needed is for successive opposition MPs, of any party, to continually restate what Butler said. It's a travesty that lying continually to the house passes without action, yet telling the truth can see you removed.
Again, this is where Johnson has taken us. Previous prime ministers, including Johnson's immediate predecessors, would have had the integrity to correct the record. Our prime minister has no shame, nor respect for the fragile conventions of the parliamentary democracy he should work to protect.