People like to argue that there is too much performance in politics – that especially in the era of Donald Trump, political coverage is fixated on personality at the expense of policy. Hillary Clinton, for instance, was often roundly decried as a terrible campaigner, but credited with the requisite experience and policy chops to become a highly effective president.
But politicians’ performances aren’t just embellishments or distractions from more serious business. Politics in representative democracies cannot be reduced to the minutiae of policy. Because politicians are entrusted to work on their constituents’

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