Mitt Romney has pledged “to restore the promise of America” as he accepted the Republican presidential nomination at the party’s convention in Florida.
Mr Romney also discussed his stellar business record and Mormon faith in the prime-time address, the biggest speech of his career.
Academy Award-winning actor Clint Eastwood appeared as a “mystery guest” speaker during the evening.
Mr Romney will challenge President Barack Obama in November’s election.
“I wish President Obama had succeeded because I want America to succeed,” the former Massachusetts governor said.