In Parliament, Johnson was heckled and catcalled from almost the moment he stood to speak. He noted that Tuesday was the 80th anniversary of Britain’s entrance into World War II and said “This country still stands then as now for democracy for the rule of law.” He was met with jeering laughter.

He insisted that Britain was making progress in talks with European Union leaders about an orderly Brexit, which drew more mocking laughter.

Aided by repeated demands for “Order” by House Speaker John Bercow, Johnson said his opponents’ proposal to delay Brexit by another three months after Oct. 31 would “Force us to beg for yet another pointless delay.”