This is our new weekly politics newsletter, Conventional Wisdom, covering the wild and wacky world of delegate harvesting. (Sign up here.)I know FiveThirtyEight readers are all in a tizzy about tonight’s Met Gala (what will Rihanna wear?), but there is delegate news to be attended to before spending the day clicking through photo galleries of questionable couture; without further ado, the news from the provinces.CANDIDATEDELEGATES0Donald Trump9570Ted Cruz5460John Kasich1541Hillary Clinton1,6621Bernie Sanders1,373Delegate counts as of May 2Democratic count does not include superdelegates.Delegate leakage: Leading The New York Times digital front page on Sunday was a story of delegate leakage — the loss of unbound and second-ballot delegate support — and it wasn’t about usual suspect Donald Trump, who’s been known to lose out to delegate slates aligned with Ted Cruz at state conventions.