Donald Trump: Presumptive GOP nominee

Though Trump has not formally secured the 1,237 delegates he needs to win the nomination -- and likely won't until June -- there is no serious opposition left to block his path.

His victory amounts to a stunning takeover of the Republican Party by a candidate with no political experience. Along the way, he eviscerated the GOP's most accomplished presidential field in a generation and captured the Zeitgeist of a party in which grass roots voters harbor deep ill will toward establishment elites.