Empires do not end, typically, in revolution. They dissolve by stages. The decline and fall of the Roman Empire took hundreds of years. The Liberal empire has taken two elections, and may take a third. But it is going, if not gone. The first one, 2004’s near-miss in which they were lucky to escape with a minority, cracked the Liberal aura of invincibility. The party’s weakness revealed, Gomery did the rest: once it was clear that it was possible to change the government, the public’s seeming apathy about Liberal corruption was dispelled. It was not apathy, it turned out, that...