Hours after he accused the Chinese of secretly shipping oil to North Korea, Mr. Trump explicitly said for the first time that he has “been soft” on China on trade in the hopes that its leaders will pressure North Korea to abandon its nuclear weapons program.
He hinted that his patience may soon end, however, signaling his frustration with the reported oil shipments.
“Oil is going into North Korea. That wasn’t my deal!” he exclaimed, raising the possibility of aggressive trade actions against China. “If they don’t help us with North Korea, then I do what I’ve always said I want to do.”
Despite saying that when he visited China in November, President Xi Jinping “treated me better than anybody’s ever been treated in the history of China,” Mr. Trump said that “they have to help us much more.”
“We have a nuclear menace out there, which is no good for China,” he said.
Mr. Trump gave the interview in the Grill Room at Trump International Golf Club after he ate lunch with his playing partners, including his son Eric and the pro golfer Jim Herman. No aides were present for the interview, and the president sat alone with a New York Times reporter at a large round table as club members chatted and ate lunch nearby. A few times, members and friends — including a longtime supporter, Christopher Ruddy, the president and chief executive of the conservative website and TV company Newsmax — came by to speak with Mr. Trump.
Noting that he had given Mr. Herman $50,000 years ago when he worked at the president’s New Jersey golf club and was trying to make the PGA Tour, Mr. Trump asked him how much he made playing on the professional circuit.
“It’s like $3 million,” Mr. Herman said.
“Which to him is like making a billion because he doesn’t spend anything,” Mr. Trump joked. “Ain’t that a great story?”
“Like Joe Manchin,” Mr. Trump said, referring to the Democratic senator from West Virginia. He said Mr. Manchin and other Democrats claimed to be centrists but refused to negotiate on health care or taxes.
“He talks. But he doesn’t do anything. He doesn’t do,” Mr. Trump said. “‘Hey, let’s get together, let’s do bipartisan.’ I say, ‘Good, let’s go.’ Then you don’t hear from him again.”
Nonetheless, Mr. Trump said he still hoped Democrats will work with him on bipartisan legislation in the coming year to overhaul health care, improve the country’s crumbling infrastructure and help young immigrants brought to the country as children.
Mr. Trump disputed reports that suggested he does not have a detailed understanding of legislation, saying, “I know the details of taxes better than anybody. Better than the greatest C.P.A. I know the details of health care better than most, better than most.”
Later, he added that he knows more about “the big bills” debated in the Congress “than any president that’s ever been in office.”
The president also spoke at length about the special election this month in Alabama, where Roy S. Moore, the Republican candidate, lost to a Democrat after being accused of sexual misconduct with young girls, including a minor, when he was in his 30s.
Mr. Trump said that he supported Mr. Moore’s opponent in the Republican primary race because he knew Mr. Moore would lose in the general election. And he insisted that he endorsed Mr. Moore later only because “I feel that I have to endorse Republicans as the head of the party.”
Mr. Trump repeated his assertion that Democrats invented the Russia allegations “as a hoax, as a ruse, as an excuse for losing an election.” He said that “everybody knows” his associates did not collude with the Russians, even as he insisted that the “real stories” are about Democrats who worked with Russians during the 2016 campaign.
“There’s been no collusion. But I think he’s going to be fair,” Mr. Trump said of Mr. Mueller.
In recent weeks, Republican lawmakers have seized on anti-Trump texts sent by an F.B.I. investigator who was removed from Mr. Mueller’s team as evidence of political bias. At a hearing this month, Representative Jim Jordan, Republican of Ohio, said that “the public trust in this whole thing is gone.”
Although Mr. Trump said he believes Mr. Mueller will treat him fairly, Mr. Trump raised questions about how the special counsel had dealt with the lobbyist Tony Podesta. Mr. Podesta is the brother of Mrs. Clinton’s campaign chairman, John D. Podesta, and Tony Podesta is under investigation for work his firm, the Podesta Group, did on behalf of a client referred to it in 2012 by Paul Manafort, the former Trump campaign chairman.
“Whatever happened to Podesta?” Mr. Trump said. “They closed their firm, they left in disgrace, the whole thing, and now you never heard of anything.”
Mr. Trump tried to put distance between himself and Mr. Manafort, who was indicted in October. The president said that Mr. Manafort — whom he called “very nice man” and “an honorable person” — had spent more time working for other candidates and presidents than for him.
“Paul only worked for me for a few months,” Mr. Trump said. “Paul worked for Ronald Reagan. His firm worked for John McCain, worked for Bob Dole, worked for many Republicans for far longer than he worked for me. And you’re talking about what Paul was many years ago before I ever heard of him. He worked for me for — what was it, three and a half months?”
Mr. Trump said it was “too bad” that Jeff Sessions, the attorney general, recused himself from overseeing the Russia investigation. Mr. Trump did not directly answer a question about whether he thought that Eric H. Holder Jr., President Barack Obama’s first attorney general, was more loyal than Mr. Sessions had been.
“I don’t want to get into loyalty, but I will tell you that, I will say this: Holder protected President Obama. Totally protected him,” Mr. Trump said. He added: “When you look at the things that they did, and Holder protected the president. And I have great respect for that, I’ll be honest.”
Mr. Trump said he believes members of the news media will eventually cover him more favorably because they are profiting from the interest in his presidency and thus will want him re-elected.
“Another reason that I’m going to win another four years is because newspapers, television, all forms of media will tank if I’m not there because without me, their ratings are going down the tubes,” Mr. Trump said, then invoked one of his preferred insults. “Without me, The New York Times will indeed be not the failing New York Times, but the failed New York Times.”
He added: “So they basically have to let me win. And eventually, probably six months before the election, they’ll be loving me because they’re saying, ‘Please, please, don’t lose Donald Trump.’ O.K.”
After the interview, Mr. Trump walked out of the Grill Room, stopping briefly to speak to guests. He then showed off a plaque that listed the club’s golf champions, including several years in which Mr. Trump had won its annual tournament. Asked how far he was hitting balls off the tee these days, Mr. Trump, who will turn 72 next year, was modest. “Gets shorter every year,” he said.
Thanx NY Times