"I've said if Ivanka weren't my daughter, perhaps I'd be dating her."

"Yeah, she's really something, and what a beauty, that one. If I weren't happily married and, ya know, her father . . .’”

“When somebody is the president of the United States, the authority is total. And that’s the way it’s gotta be. It’s total.”

Donald J. Trump, who earlier in the week said he was open to requiring Muslims in the United States to register in a database, said that he “would certainly implement that — absolutely.”

Mr. Trump was asked about the issue by an NBC News reporter and pressed on whether all Muslims in the country would be forced to register. “They have to be,” he said. “They have to be.”