Donald Trump’s secret is his Boris-style hair

It is recognised that the era of television has made it well-nigh impossible in Britain and the United States for a balding leader to win an election if pitted against one with more hair — Callaghan/Foot/Kinnock v. Thatcher, George H.W. Bush v. Clinton, Hague/Howard v. Blair, McCain v. Obama. (The only exceptions I can think of derive from the power of incumbency — George W.