CLEVELAND — Donald J. Trump lashed out at Senator Ted Cruz on Friday, rehashing a long list of grievances from their primary battle during a news conference here only hours after he accepted the Republican Party’s presidential nomination at a convention meant to unite the party.
After declaring that he had unified the party in one of the most “love-filled” conventions in political history, Mr. Trump launched an extended diatribe against Mr. Cruz, who pointedly declined to endorse him during his own convention speech on Wednesday and instead urged people to vote their conscience. The speech embarrassed Mr. Trump and cast a shadow of discord over  convention, which had already been marred by plagiarism in a speech by Mr. Trump’s wife, Melania, on Monday.