His focus on the Kennedy Center fits a pattern. From Augustus to Stalin, strongmen have sought cultural control for their own endsIn Washington, Donald Trump’s takeover of the Kennedy Center – the US’s imposing national centre for the performing arts – presents a bizarre, unnerving and, at times, bleakly comical spectacle. Last month, he announced himself its new chair, replaced 13 board members, and inserted a new interim president, foreign policy adviser Richard Grenell. On Monday this week, the president’s motorcade disgorged him at the building – which contains an opera house, theatre, concert hall and a plethora of smaller venues off its towering, chandelier-hung foyers. By this point, his and Melania Trump’s portraits, alongside those of vice-president JD Vance and his wife Usha, had been screwed to the wall beside the concert hall stage door.Trump and his new trustees – who include Usha Vance and Fox presenter Laura Ingraham – then discussed changes to the Kennedy Center Hono...