It has been obvious to most media from the beginning that Giuseppe Conte, no matter how many handshakes he makes with Trump or summit meetings he attends, is not the true boss of Italy: that designation belongs to arch-racist and Mussolini-quoting Interior Minister Matteo Salvini. The focus on the reason behind this – the leaders of Lega and 5 Star both wanted to be Premier and couldn’t agree on who deserved the title – misses an important and worrying shift in European politics: Increasingly, interior ministers are becoming the political figures with the most popularity, and often, the most power. Take Germany. Angela Merkel, who has been Chancellor of Germany for thirteen years, is increasingly looking like a lame duck, whose mandate could be cut short at any time by Horst Seehofer, a virulently anti-Muslim and anti-refugee figure with a penchant for hostility towards left-wing street activists combined with tolerance for legitimate fascists in his police work. Herbert...