Donald Trump was formally nominated for president by the Republican party in Cleveland on Tuesday night and immediately proclaimed he would win the White House in November's general election.
Hailing a "very special day", Mr Trump thanked the Republican nominees from around the country for confirming his candidacy.
"This is a movement. But we have to go all the way. I am so proud to be your nominee for president," he said.
"What we did getting the party's nomination, I will never forget it.
"With your vote today, this stage of the presidential process has come to a close. Together we have achieved historic results."
The 50 US states confirmed their primary votes, leaving Mr Trump's son Donald Trump Jr to announce the New York results - choreographed to be the results that got the businessman "over the top".
"It is my honour to be able to throw Donald Trump over the top in the delegate count tonight," Mr Trump Jr said.
"Congratulations, Dad. We love you."
Tiffany Trump also spoke, attempting to show Mr Trump as a "loving, caring" man.
Several senior Republicans were then rolled out, with failed Republican presidential candidate Ben Carson going so far as to associate Hillary Clinton with Lucifer.
Chris Christie, himself a former federal prosecutor, also launched an all-out attack on Mrs Clinton. "Let's do something fun tonight," he said. "We are going to present the facts to you. You, tonight, sitting as a jury of her peers in this hall and in your living rooms around our nation," he said.
He then outlined what he called "the facts" against Mrs Clinton, savaging her record as US secretary of state, holding her responsible for the chaos and violence engulfing Libya, and asking whether she is "guilty or not guilty" of being an apologist for Boko Haram in Nigeria.