Not a day goes by when Trump’s close ally, Steve Bannon, does not cite London as a sharia-governed city. Bannon has shifted his daily War Room broadcast from Washington to Texas to back a state referendum that would ban sharia law (Prop 10). Other US states are pushing similar propositions. Rhetoric against the Islamic threat looks set to return to centre stage in the Republican midterm election campaign. “London is exhibit A in our warning,” says Bannon.