Mr Trump got around 35% of the vote, mainly from white men with only a high-school education. That was more than his rivals—a starting line-up of 17, including four senators, of whom Mr Cruz was the last left standing, and nine current or former governors, including Mr Kasich. But it was low enough to make Mr Trump seem a weak front-runner, unable to win a majority in any state, and apparently dependent for his advantage...Mr Trump would be trumped.