Immediately after ousting Sussan Ley, Angus Taylor used his first press conference as opposition leader to debut a slogan he hoped would define a new era of Liberal conservatism. “The door must be shut,” Taylor said of his approach to prospective migrants who didn’t subscribe to Australia’s “core beliefs”. “The door must be shut,” he repeated. The theme, the tone, the repetition, the rhythm: the echoes of another Liberal opposition leader rang loud and clear. “It sounded exactly like Tony Abbott ,” remarked one Liberal MP, wryly observing the only difference being that Abbott preferred his slogans to be three words, not five. Angus Taylor at his first press conference as opposition leader. Photograph: Hilary Wardhaugh/Getty Images ‘Another step on the road to self-destruction’ Australia’s 28th prime minister – the most powerful conservative in an increasingly conservative party – has long exerted influence over Taylor, rightwing MPs and Liberal rank-and-file members.…