The art of the coronation has taken something of a beating at the Republican National Convention. Nevertheless, Donald Trump now has the crown and a final chance to summon unity from the party's restive ranks in the ritual's closing days.

The roll call of the states on Tuesday night delivered Trump the nomination, which he welcomed from afar in a videotaped message saying "This is a movement, but we have to go all the way". House Speaker Paul Ryan announced that Trump had amassed 1,725 delegates, more than triple the number of his nearest competitor, the fruits of a political phenomenon without parallel in modern times.

Day 3 of the convention will bring two conservative stalwarts to the stage: Trump's running mate, Indiana Governor Mike Pence, a favorite of evangelicals; and the nominee's most tenacious challenger in the primaries, Texas Senator Ted Cruz, the man Trump used to call "Lyin' Ted".