On December 23rd a congressional committee released a lurid 37-page report alleging ethical misconduct by Matt Gaetz, the former maverick member of the House of Representatives who briefly stood as Donald Trump’s nominee for attorney-general. In a different time the investigation’s details about illicit sex and drug use would definitively end Mr Gaetz’s political career, and perhaps it will now. Yet he could soon test how far deviance has been defined down in America’s norm-smashing political era.