The latest instalment of our series asks how much difference Donald Trump’s imprimatur has made to candidates—and whether that influence will carry over to a general election. A look at South African rugby reveals positive change in the top ranks but dispiriting decline in the local game. And what the cultural intertwining of James Bond and the Beatles says about Britishness. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer