Donald Trump’s stunning victory will force the United States to confront a series of never-before-seen entanglements over the president’s private business, debts and rocky financial history.

No laws prohibit Trump from involving himself in his private company, the Trump Organisation, while serving in the highest public office.

And Trump has so far resisted the long-standing presidential tradition of giving his holdings to an independent manager, stoking worries of conflicts of interests over his businesses’ many financial and foreign ties.

Trump’s business empire of hotels, golf courses and licensing deals in the US and abroad, some of which have benefited from tax breaks or government subsidies, represents an ethical minefield for a commander in chief who would oversee the US budget and foreign relations, some analysts say.

President-elect Trump will likely take the witness stand in a federal civil trial starting later this month, a first for an incoming president, over claims of fraud at his Trump University real estate seminar series.

Other Trump companies are partially indebted to banks in Germany and China. On financial disclosure filings, Trump listed involvements in more than 500 companies, some in countries where the US has sensitive diplomatic or financial relationships, such as Saudi Arabia, the United Arab Emirates and China.

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Those entanglements are unprecedented, unavoidable and “troubling,” Ken Gross, a former elections enforcement official and lawyer who has advised presidential candidates from both parties, said after the election. “He has investments in businesses in unfriendly countries and the businesses are often tied to those unfriendly governments.”

“The obvious solution is to sell those interests,” Gross said, but many holdings may not be easily sold, or are still tied to debts personally guaranteed by Trump. “Removing himself or his family from the perception of self or family interest may prove difficult,” he added.

Ethics officials urged Trump during his campaign to pledge he would sell his businesses or cede them to an independent authority. Many modern presidents - including Ronald Reagan, Bill Clinton and both Bushes - went beyond what was required and placed their assets in “blind trusts,” run by third-party managers who keep complete control.

But Trump has refused to make such a pledge, saying only that he would give companies to his children and executives to run. Attorneys said that would put little distance between a President Trump and the businesses he spent a lifetime grooming and profiting from.

“Now we are faced with the possibility that a son or daughter of the president will turn up in Moscow or Uzbekistan or somewhere else negotiating a deal on a new property that will bear the name of the president, and the full knowledge that the president really is an owner of the company,” Trevor Potter, a former Federal Election Commission chairman and general counsel for George H.W. Bush and Sen. John McCain (R-Ariz.), said in September. “That presents problems of a dimension we have never seen before.”

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Trump’s presidential campaign funneled vast sums of money to private Trump companies, and he has celebrated that his companies could reap the benefits of his rise to public power. In June, he tweeted about Trump University, “After the litigation is disposed of and the case won, I have instructed my execs to open Trump U(?), so much interest in it! I will be pres.”

Those business conflicts will bind the president-elect even before his inauguration. Trump could be called to testify in the Trump University trial, part of a class-action lawsuit brought by former students who said they were misled about the seminars' offerings. That case is scheduled for the San Diego courtroom of US District Judge Gonzalo Curiel, who Trump accused of bias and falsely claimed was Mexican.

The government investigators scrutinising Trump's businesses and allies, analysts said, could be influenced by the fact that their target could be their boss. Trump’s former campaign chairman, Paul Manafort, was named in a corruption investigation by a Ukrainian agency working with the FBI. New York state has also ordered Trump's charitable foundation to stop fundraising because it lacked the proper authorisation.

Members of Congress must recuse themselves from government dealings touching on their own financial interests, according to strict regulations in the Ethics in Government Act of 1978, enacted after Watergate. Presidents, however, were made exempt from those rules on the belief they could further complicate the wide-ranging job.

In the run-up to the election, Trump said he would take little interest in his businesses if he won the Oval Office. “If I become president, I couldn’t care less about my company. It’s peanuts,” he said during a January debate. “Run the company, kids. Have a good time.”

US Election night in pictures Show all 24 1 /24 US Election night in pictures US Election night in pictures NEW YORK, NY - NOVEMBER 09: People celebrate during the call for Republican president-elect Donald Trump at his election night event at the New York Hilton Midtown on November 9, 2016 in New York City. at the New York Hilton Midtown in the early morning hours of November 9, 2016 in New York City. Donald Trump defeated Democratic presidential nominee Hillary Clinton to become the 45th president of the United States. (Photo by Mark Wilson/Getty Images) Getty US Election night in pictures U.S. Democratic presidential nominee Hillary Clinton is joined by her husband, former U.S. President Bill Clinton, at a campaign rally in Philadelphia, Pennsylvania, U.S. November 7, 2016, the final day of campaigning before the election. REUTERS/Brian Snyder TPX IMAGES OF THE DAY Reuters US Election night in pictures U.S. Democratic presidential nominee Hillary Clinton and her husband, former U.S. President Bill Clinton, talk to reporters on her campaign plane in Philadelphia, Pennsylvania, U.S. November 7, 2016, the final day of campaigning before the election. REUTERS/Brian Snyder Reuters US Election night in pictures Democratic party nominee Hillary Clinton gives a speech from a stand bearing the US President seal during a rally on Independence Mall, November 7, 2016 in Philadelphia, Pennsylvania. About 40,000 people flooded Independence Mall in Philadelphia for Hillary Clinton's rally with her husband Bill, President Barack Obama and his wife Michelle at her side, a campaign aide said. The attendance set a new record for Clinton, with the previous high point a rally in Ohio that drew 18,500 people, a campaign aide told reporters traveling with the candidate. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images Getty US Election night in pictures PHILADELPHIA, PA - NOVEMBER 07: U.S. President Barack Obama hugs Democratic presidential nominee former Secretary of State Hillary Clinton during a campaign rally on Independence Mall on November 7, 2016 in Philadelphia Pennsylvania. With one day to go until election day, Hillary Clinton is campaigning in Pennsylvania, Michigan and North Carolina. (Photo by Justin Sullivan/Getty Images) Getty US Election night in pictures PHILADELPHIA, PA - NOVEMBER 07: Democratic presidential nominee former Secretary of State Hillary Clinton speaks during a campaign rally on Independence Mall on November 7, 2016 in Philadelphia Pennsylvania. With one day to go until election day, Hillary Clinton is campaigning in Pennsylvania, Michigan and North Carolina. (Photo by Justin Sullivan/Getty Images) Getty US Election night in pictures Supporters of U.S. Democratic presidential nominee Hillary Clinton watch results at her election night rally in Manhattan, New York, U.S., November 8, 2016. REUTERS/Lucas Jackson Reuters US Election night in pictures People watch elections returns during election night at the Jacob K. Javits Convention Center in New York on November 8, 2016. US Democratic presidential nominee Hillary Clinton will hold her election night event at the convention center. / AFP PHOTO / DON EMMERTDON EMMERT/AFP/Getty Images Getty US Election night in pictures NEW YORK, NY - NOVEMBER 08: A man reacts as he watches voting results at Democratic presidential nominee former Secretary of State Hillary Clinton's election night event at the Jacob K. Javits Convention Center November 8, 2016 in New York City. Clinton is running against Republican nominee, Donald J. Trump to be the 45th President of the United States. (Photo by Aaron P. Bernstein/Getty Images) Getty US Election night in pictures People watch elections returns during election night at the Jacob K. Javits Convention Center in New York on November 8, 2016. US Democratic presidential nominee Hillary Clinton will hold her election night event at the convention center. / AFP PHOTO / DON EMMERTDON EMMERT/AFP/Getty Images Getty US Election night in pictures NEW YORK, NY - NOVEMBER 08: People watch voting results at Democratic presidential nominee former Secretary of State Hillary Clinton's election night event at the Jacob K. Javits Convention Center November 8, 2016 in New York City. Clinton is running against Republican nominee, Donald J. Trump to be the 45th President of the United States. (Photo by Win McNamee/Getty Images) Getty US Election night in pictures NEW YORK, NY - NOVEMBER 08: People react as they watch voting results at Democratic presidential nominee former Secretary of State Hillary Clinton's election night event at the Jacob K. Javits Convention Center November 8, 2016 in New York City. Clinton is running against Republican nominee, Donald J. Trump to be the 45th President of the United States. (Photo by Elsa/Getty Images) Getty US Election night in pictures NEW YORK, NY - NOVEMBER 08: Supporters of Republican presidential nominee Donald Trump cheer during the election night event at the New York Hilton Midtown on November 8, 2016 in New York City. Americans today will choose between Republican presidential nominee Donald Trump and Democratic presidential nominee Hillary Clinton as they go to the polls to vote for the next president of the United States. (Photo by Chip Somodevilla/Getty Images) Getty US Election night in pictures NEW YORK, NY - NOVEMBER 08: Supporters of Republican presidential nominee Donald Trump cheer during the election night event at the New York Hilton Midtown on November 8, 2016 in New York City. Americans today will choose between Republican presidential nominee Donald Trump and Democratic presidential nominee Hillary Clinton as they go to the polls to vote for the next president of the United States. (Photo by Chip Somodevilla/Getty Images) Getty US Election night in pictures NEW YORK, NY - NOVEMBER 08: People cheer at Republican presidential nominee Donald Trumps election night event at the New York Hilton Midtown on November 8, 2016 in New York City. Americans today will choose between Republican presidential nominee Donald Trump and Democratic presidential nominee Hillary Clinton as they go to the polls to vote for the next president of the United States. (Photo by Spencer Platt/Getty Images) Getty US Election night in pictures SEOUL, SOUTH KOREA - NOVEMBER 09: People carrie a picture of Democratic presidential candidate Hillary Clinton after a election watch event on November 9, 2016 in Seoul, South Korea. Counting process is underway and Republican presidential candidate Donald Trump has been elected the 45th president of the United States defeating Democratic presidential candidate Hillary Clinton. (Photo by Chung Sung-Jun/Getty Images) Getty US Election night in pictures NEW YORK, NY - NOVEMBER 09: A woman takes a selfie during Republican presidential nominee Donald Trump's election night event at the New York Hilton Midtown on November 8, 2016 in New York City. Americans today will choose between Republican presidential nominee Donald Trump and Democratic presidential nominee Hillary Clinton as they go to the polls to vote for the next president of the United States. (Photo by Chip Somodevilla/Getty Images) Getty US Election night in pictures Supporters of Republican candidate Donald Trump, Stephanie Meza (L), 42, of Scottsdale, Arizona, and Rhonda Davis (R), 63, of Scottsdale, Arizona cheer as election results come in during a viewing party at a hotel in downtown Phoenix, Arizona on November 8, 2016. Millions of Americans voted November 8th for their new leader in a historic election that will either elevate Democrat Hillary Clinton as their first woman president or hand power to maverick populist Donald Trump. / AFP PHOTO / Laura SegallLAURA SEGALL/AFP/Getty Images Getty US Election night in pictures NEW YORK, NY - NOVEMBER 09: Republican president-elect Donald Trump acknowledges the crowd during his election night event at the New York Hilton Midtown in the early morning hours of November 9, 2016 in New York City. Donald Trump defeated Democratic presidential nominee Hillary Clinton to become the 45th president of the United States. (Photo by Mark Wilson/Getty Images) Getty US Election night in pictures NEW YORK, NY - NOVEMBER 09: Republican president-elect Donald Trump walks on stage with his son Barron Trump, wife Melania Trump and Ivanka Trump during his election night event at the New York Hilton Midtown in the early morning hours of November 9, 2016 in New York City. Donald Trump defeated Democratic presidential nominee Hillary Clinton to become the 45th president of the United States. (Photo by Chip Somodevilla/Getty Images) Getty US Election night in pictures NEW YORK, NY - NOVEMBER 09: Vice president-elect Mike Pence and Republican president-elect Donald Trump shake hands during his election night event at the New York Hilton Midtown in the early morning hours of November 9, 2016 in New York City. Donald Trump defeated Democratic presidential nominee Hillary Clinton to become the 45th president of the United States. (Photo by Mark Wilson/Getty Images) Getty US Election night in pictures US President-elect Donald Trump greets wife Melania after speaking at the New York Hilton Midtown in New York on November 8, 2016. Trump stunned America and the world Wednesday, riding a wave of populist resentment to defeat Hillary Clinton in the race to become the 45th president of the United States. / AFP PHOTO / SAUL LOEBSAUL LOEB/AFP/Getty Images Getty US Election night in pictures US President-elect Donald Trump greets doughter Tiffany after speaking at the New York Hilton Midtown in New York on November 8, 2016. Trump stunned America and the world Wednesday, riding a wave of populist resentment to defeat Hillary Clinton in the race to become the 45th president of the United States. / AFP PHOTO / SAUL LOEBSAUL LOEB/AFP/Getty Images Getty US Election night in pictures Republican presidential elect Donald Trump (L) kisses his daughter Ivanka during election night at the New York Hilton Midtown in New York on November 9, 2016. Trump stunned America and the world Wednesday, riding a wave of populist resentment to defeat Hillary Clinton in the race to become the 45th president of the United States. / AFP PHOTO / MANDEL NGANMANDEL NGAN/AFP/Getty Images AFP/Getty Images

The Trump Organisation's executive vice president, Alan Garten, echoed that sentiment to The Post in September. “His focus is going to be solely on improving the country,” Garten said. “The business is not going to be a factor or an interest at that point.”

Trump’s son Donald Trump Jr. has insisted that Trump’s holdings would go into a blind trust managed by him and his siblings Eric and Ivanka Trump.

“We're not going to be involved in government,” Trump Jr. said in September on Good Morning America. “He wants nothing to do with [the company]. He wants to fix this country.”

When pressed over the potential of Trump and his family still discussing the business while Trump is in office, Trump Jr. said, “We're not going to discuss those things… Trust me. As you know, it's a very full-time job. He doesn't need to worry about the business. The business is in good hands. He trusts us with that, 100 percent.”

Jan Witold Baran, a partner at Washington law firm Wiley Rein, said Trump will have to address concerns over government decisions that would affect his businesses, no matter who's running them.

Giving his companies to his children “doesn't necessarily remove him from those issues for political purposes,” Baran said. “His name is on the business, for Pete's sake.”

During his victory speech early Wednesday, Trump took pride in his business record and connected it to his ability to lead the country, saying, “I've spent my entire life in business, looking at the untapped potential in projects and in people all over the world.”

Trump business and campaign officials did not respond to requests for comment on any timeline or details for the next steps Trump would take with his business empire.

The bank has undergone criminal investigations by government authorities in the US and other countries. After one probe last year, the bank agreed to pay $2.5 billion in fines to resolve a scandal over its alleged rigging of influential loan interest rates. In June, the International Monetary Fund said the bank was one of the biggest “contributors to systemic risks in the global banking system.”

Trump’s companies signed for roughly $360 million in Deutsche loans tied to the Trump National Doral golf club in south Florida, the Trump International Hotel and Tower in Chicago, and the new Trump International Hotel in Washington. Those loans are set to come due by 2024, which could parallel the end of a possible Trump presidency’s second term.

Trump’s election will again spotlight the many connections between his businesses and Russia, a long-standing antagonist of the United States. Trump has praised Russian President Vladimir Putin and voiced hopes he could develop new real-estate businesses there.

Strong evidence suggests Trump’s businesses have received significant funding from Russian investors. Donald Trump Jr. said at a New York real estate conference in 2008 that “Russians make up a pretty disproportionate cross-section of a lot of our assets,” and that “we see a lot of money pouring in from Russia.”

The election of Trump, who campaigned against trade and immigration, sent shock waves through financial markets across the world early Wednesday. Global stocks and the dollar plunged and, though some markets have recovered early losses, analysts have pointed to growing uncertainty among companies with foreign dealings.

“The US economy and financial markets suddenly find themselves in no man’s land,” said Mark Hamrick, Bankrate.com’s senior economic analyst. “The way forward for large companies, for example, doing business across borders, as well as any size firm reliant upon an immigrant workforce, is difficult to chart from here.”

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How Trump’s company could evolve remains a mystery. The election has transformed Trump from a noted real-estate developer and reality-show host into one of the world’s most famous men, with a fanbase energised by his rhetoric and showmanship and, perhaps, willing to follow him beyond the vote.

But his most energised audience - of, largely, middle-American and blue-collar voters - is also a class his businesses have long ignored, through high-class offerings such as $800 hotel rooms and $30,000 golf-club memberships.

“He’s built this enormously resonant brand with what I’ll affectionately call angry white males. It’s not only a big market, but it appears to be growing,” said Scott Galloway, a professor of marketing who teaches brand strategy at New York University, on Tuesday. “But his current product offering caters to affluent, fortunate and relatively happy people. And as a general rule, the affluent are mildly horrified by the current trajectory of the Trump brand.”

Trump’s brand may remain anathema to some potential customers who were turned off by his campaign despite his victory.

Trump International Hotel and Tower, a 57-storey tower that opened in Toronto four years ago, was placed into receivership recently when it failed to hit financial projections, according to court filings. Trump operates that property but does not own it. However, Symon Zucker, an attorney for the project’s owner, said Tuesday that a Trump victory wasn’t “going to affect it positively.”

“All the same people who weren’t going to come to it before aren’t going to come to it now,” he said.