Steve Scalise, the Louisiana Republican who some in his party reportedly want to elect as speaker of the US House of Representatives after the stunning and historic removal of Kevin McCarthy, was once reported to have called himself “David Duke without the baggage”. Duke, 73, is a former Grand Wizard of the Knights of the Ku Klux Klan, an avowed white supremacist who has run for Louisiana governor, the US House and Senate and for president and who in 2003 was sentenced to 15 months in jail for mail and tax fraud. Scalise, now 57, was elected to Congress in...