Trump Jr. was born on December 31, 1977, in Manhattan, New York City, to Ivana and Donald Trump. He has two younger siblings, Ivanka and Eric. He also has two half siblings, Tiffany, from his father’s marriage to Marla Maples, and Barron, from his father’s current marriage to Melania Trump. Through his father, Trump Jr. is a grandson of Fred Trump and great-grandson of Elizabeth Trump, who founded what became the Trump Organization. As a boy, Trump Jr. found a role model in his maternal grandfather, Miloš Zelníček, who had a home near Prague, where he spent summers camping, fishing, hunting and learning the Czech language.

Trump Jr. was educated at Buckley School and the Hill School, a college preparatory boarding school in Pottstown, Pennsylvania, followed by the University of Pennsylvania’s Wharton School, where he graduated in 2000 with a B.S. in Economics.

After graduating from Penn in 2000, Trump moved to Aspen, Colorado, where he hunted, fished, skied, lived in a truck, and worked as a bartender for a year, before returning to join the Trump Organization in New York. Trump has supervised building projects, which included 40 Wall Street, Trump International Hotel and Tower, and Trump Park Avenue, In 2006 he helped launch Trump Mortgage, which collapsed less than a year later. In 2010 he became a spokesperson for Cambridge Who’s Who, a public relations firm that had received hundreds of complaints filed with the Better Business Bureau. He appeared as a guest adviser and judge on many episodes of his father’s reality television show The Apprentice, from season 5 in 2006 to his father’s last season in 2015.

In 2003, Trump Jr. began dating model Vanessa Kay Haydon at his father’s suggestion. The couple married on November 12, 2005, at his father’s Mar-a-Lago estate in Palm Beach, Florida; the service was officiated by Trump Jr.’s aunt, Judge Maryanne Trump Barry. Haydon’s grandfather was Danish jazz musician Kai Ewans. They have five children.

In 2007, Trump Jr. gave $4,000 to then-Senator Hillary Clinton’s campaign to be the Democratic presidential nominee.

In 2011, Trump Jr. responded to criticism of the Tea Party movement by Florida representative Frederica Wilson by confusing Wilson with California representative Maxine Waters and saying her colorful hats made her look like a stripper.

Trump Jr. is an enthusiastic hunter. Controversy erupted in 2012 when the pictures he had taken of his hunting trophies in 2010 were published, including by Mia Farrow, who reposted them in 2015. Trump Jr. responded by saying “I’m not going to run and hide because the peta [sic] crazies don’t like me.” In one photo, Trump Jr. has his arms around a dead leopard; in another, he is holding a knife in one hand and a bloody elephant tail in the other. Although the hunt was legal, anti-hunting activists criticized him. At least one sponsor dropped his father’s TV show The Celebrity Apprentice. On Earth Day in 2017, Trump Jr. legally hunted prairie dogs in Montana with GOP Congressional candidate Greg Gianforte. Controversy over Trump Jr.’s big game hunting exploits surfaced again in November 2017, following the Trump administration’s decision to allow “importing elephant heads, feet and other body parts severed as trophies after the animals are shot for sport in Zimbabwe.” Within hours, President Trump reversed the decision to allow elephant trophies imported from Zambia and Zimbabwe, pending further review. By March 2018 President Trump quietly lifted the ban again, allowing elephant trophies to be imported.

Trump Jr. influenced his father’s choice of Secretary of the Interior Ryan Zinke during the presidential transition. Since his father’s victory in the 2016 election, Trump Jr. has developed what The Washington Post calls a “public persona as a right-wing provocateur and ardent defender of Trumpism”.

On June 9, 2016, Trump Jr. attended a meeting arranged by publicist Rob Goldstone on behalf of Azerbaijani-Russian businessman Emin Agalarov. The meeting was held in Trump Tower in Manhattan, among three members of the presidential campaign: Trump Jr., Jared Kushner, and Paul Manafort – and Russian lawyer Natalia Veselnitskaya, her translator Anatoli Samochornov, Russian-American lobbyist Rinat Akhmetshin, and Ike Kaveladze, a Georgian-American, U.S.-based senior vice president at Crocus Group, the real estate development company run by Aras Agalarov.

Trump Jr. had a meeting in August 2016 with an emissary for the United Arab Emirates and Saudi Arabia who offered help to the Trump presidential campaign. The meeting included Joel Zamel, an Israeli specialist in social media manipulation; George Nader, an envoy representing the crown princes of the United Arab Emirates and Saudi Arabia; and American businessman Erik Prince.

During his father’s presidential campaign, Trump Jr. caused controversy in 2016 when he posted an image that compared refugees to Skittles, saying “If I had a bowl of skittles and I told you just three would kill you. Would you take a handful? That’s our Syrian refugee problem.” The makers of Skittles condemned the tweet, saying “Skittles are candy. Refugees are people. We don’t feel it’s an appropriate analogy.” The Cato Institute reported that year that the chances “an American would be killed in a terrorist attack committed by a refugee was one in 3.64 billion” per year.

On March 1, 2016, an interview with white supremacist James Edwards and Trump Jr. was aired. The campaign initially denied the interview had taken place; later Trump Jr. claimed it was unintentional. As a consequence of the interview, mainstream media outlets have accused Trump Jr. of being either a believer in the white genocide conspiracy theory, or pretending to be an advocate for political gain.

In September 2016, Trump Jr. cited Holocaust imagery to criticize what he perceived as the mainstream media’s seemingly uncritical coverage of Hillary Clinton during her campaign, by “letting her slide on every discrepancy”, while also accusing Democrats involved in the 2016 campaign of lying. Trump Jr. said if the Republicans were committing the same offences mainstream outlets would be “warming up the gas chamber right now”. Also that month, Trump Jr. shared an image on Instagram depicting a cross between his father and Pepe the Frog. When asked on Good Morning America about Pepe the Frog and its associations with white supremacy, Trump Jr. said he had never heard of Pepe the Frog and thought it was just a “frog with a wig”.

On January 11, 2017, Trump’s father announced that he and his brother Eric would oversee a trust that included the Trump Organization’s assets while his father was president, in order to avert a conflict of interest.

Approximately a year later, Trump Jr. initially told the media that adoption of Russian children was the main subject of the meeting. On July 8, 2017, Trump Jr. tweeted his email exchange with Goldstone. It revealed that Trump Jr. had agreed to attend the meeting with the understanding he would receive information damaging to Hillary Clinton, which he considered opposition research. Goldstone also wrote in one of Trump Jr.’s publicly disclosed emails that the Russian government was involved. Robert Mueller, the special counsel of the Department of Justice in charge of Russia-related investigations, investigated the emails and the meeting. Although the White House lauded Trump Jr. for his transparency, he released the e-mails only after The New York Times had informed him that they had them and were going to publish a story about them.

In November 2017, news broke that Julian Assange had used the WikiLeaks Twitter account to correspond with Donald Trump Jr. during the 2016 presidential election. Trump Jr. had already provided this correspondence to congressional investigators who were looking into Russian interference in the 2016 election.

In April 2017, he campaigned for Montana congressional candidate Greg Gianforte, and in May met with Republican National Committee officials to discuss the party’s strategy and resources.

In September 2017, Trump Jr. asked to have his Secret Service detail removed, telling friends he wanted more privacy. The request was criticized by former Secret Service agents. Trump Jr.’s protection was restored later that month.

In April 2017, Trump Jr. lauded Mike Cernovich, who has promoted the white genocide and debunked Pizzagate conspiracy theories, saying, “In a long gone time of unbiased journalism he’d win the Pulitzer”.

In March 2017, Trump Jr. criticized the mayor of London, Sadiq Khan, after the 2017 Westminster attack, which in turn led British lawmakers to criticize Trump Jr. British journalists said Trump Jr. had quoted Khan out of context when he criticized him. Khan did not respond to the criticism, saying he had “far more important things” to do.

In May 2017, Trump Jr. promoted what CNN called the “long-debunked, far-right conspiracy theory” that Bill Clinton was linked to Vince Foster’s death. In November, Trump Jr. again promoted the conspiracy theory that the Clintons had murdered people.

On October 31, 2017, Trump Jr. tweeted that he would take away half his three-year-old daughter’s Halloween candy because, he wrote, “it’s never too early to teach her about socialism.”

On November 7, 2017, he posted tweets urging voters in Virginia’s gubernatorial election to vote “tomorrow”, the day after the election.

In February 2018, advertisements in Indian newspapers promoted a deal whereby anyone who purchased Trump Organization apartments in Gurgaon before February 20 would be invited to have a “conversation and dinner” with Trump Jr. The ads were criticized by corruption watchdogs as unethical.

During the 2018 midterms election cycle, Trump actively campaigned on behalf of Republican candidates, including for Matt Rosendale, Patrick Morrisey, Mike Braun, Ron DeSantis, Lee Zeldin and Matt Gaetz. He raised millions of dollars for Republican candidates, was second only to his father in his ability to draw crowds to campaign events, and is credited with helping Republican candidates win.

In February 2018, Trump Jr. liked two tweets promoting a conspiracy theory that survivors of the Stoneman Douglas High School shooting were coached into propagating anti-Trump rhetoric.

In May 2018, Trump Jr. retweeted a false and antisemitic conspiracy theory that George Soros, the Jewish Hungarian-American businessman and philanthropist, was a “nazi [sic] who turned in his fellow Jews to be murdered in German concentration camps & stole their wealth”. The tweets originated from Roseanne Barr, whose TV show was cancelled the same day after she had posted a series of racist and antisemitic tweets. A spokesperson for George Soros responded to the tweets, “George Soros survived the Nazi occupation of Hungary as a 13-year-old child by going into hiding and assuming a false identity with the help of his father, who managed to save his own family and help many other Jews survive the Holocaust.”

In June 2018, Trump Jr. liked a tweet suggesting that the migrant children separated from their parents due to the Trump administration family separation policy were actually actors.

In August 2018, Trump Jr. shared on Instagram of a doctored image which had been crudely edited to falsely state that CNN had reported President Trump’s approval rating as 50%. The actual CNN report had Trump at 40%, below Obama’s 45% at the same point of his presidency. Trump Jr. deleted the image two days later.

In September 2018, when Hurricane Florence was affecting the United States, Trump Jr. tweeted a picture of CNN journalist Anderson Cooper waist-deep in floodwaters when another man in the same picture was standing knee-deep a distance away. Trump Jr. then proposed a conspiracy theory that CNN was “lying to try to make [his father, President Trump] look bad”. In actuality, the picture of Cooper was about ten years old, taken during 2008’s Hurricane Ike before Trump became president, and Cooper was videoed talking about how the floodwaters were receding.

On March 15, 2018, it was announced that the couple had separated and she had filed for uncontested divorce in Manhattan Supreme Court. However, later it was revealed that the divorce was contested. The complaint was secret except for the title of the case. On February 22, 2019, they announced that they settled their divorce at the end of 2018.

Since 2018, Trump Jr. has been dating Kimberly Guilfoyle. Guilfoyle had been friends with the Trump family for years.

In June 2019, Republicans and Democrats on the Senate Intelligence Committee made a criminal referral of Trump Jr. to federal prosecutors on suspicions that he misled the committee with his testimony.

In November 2019, Trump Jr. tweeted the name of the alleged whistleblower who brought to light the Trump-Ukraine scandal. Whistleblower conventions are intended to protect the identity of individuals who expose wrongdoing in government. Agence France-Presse attempted to independently verify the identity that Trump Jr. tweeted, but was unable to do so.

In 2019, Trump Jr. released the book, Triggered: How the Left Thrives on Hate and Wants to Silence Us. The book is critical of political correctness, and argues that the American left has a victimhood complex. The Washington Post commented: “yet, in his telling, the real victim is often him, his father or another Trump family member.” In the book, Trump Jr. pushes conspiracy theories about how the intelligence community has attempted to harm President Trump, comparing President Trump’s experiences with the FBI harassment campaign against civil rights leader Martin Luther King Jr. Trump Jr. wrote of a visit to Arlington National Cemetery (a military cemetery), commenting that he got emotional looking at the graves and that it reminded him of “all the sacrifices” the Trump family had made, including “voluntarily giving up a huge chunk of our business and all international deals to avoid the appearance that we were ‘profiting off of the office'”. Fact-checkers have reported that Trump still owns the family business, and that the Trump family have continued to engage in international business deals since Trump became president. In a review for The Washington Post, Carlos Lozada said, “fails as memoir and as polemic: Its analysis is facile, its hypocrisy relentless, its self-awareness marginal. (The writing is wretched, even by the standards of political vanity projects.)”

ProPublica revealed on December 11, 2019, that the government of Mongolia retroactively granted Trump Jr. a hunting permit for the endangered Argali mountain sheep. The sheep hunt and travel to Ulaanbaatar for a private meeting with Mongolian president Khaltmaagiin Battulga cost US taxpayers $76,859.36 for United States Secret Service protection, according to two Freedom of Information Act requests by the Citizens for Responsibility and Ethics in Washington (CREW). Humane Society International wildlife vice president Teresa Telecky said, “For trophy hunters to travel to Mongolia to kill a beautiful and endangered ram is an absolute outrage.”

In October 2020, it was reported that Pennsylvania Republicans were suggesting Trump Jr. run for the vacant Senate seat in Pennsylvania in 2022 after two-term incumbent Pat Toomey announced he would not be seeking re-election.

In October 2020, Trump Jr. held a crowded indoor rally where attendees did not wear masks, contradicting public health guidelines.

Donald Trump Jr. has been subject to speculation for a 2024 run for president. In October 2020 Trump Jr, posted a photo of a “Don Jr. 2024” flag to instagram.

In May 2020, Trump Jr. falsely accused Joe Biden of being a pedophile.

In August 2020, he shared a Breitbart News article about more than 800 dead people voting in Michigan which was framed to suggest that the ballots were not legitimately cast and thus evidence of extensive voter fraud. However, the voters in question died after submitting the ballots, and the ballots were rejected by Michigan authorities who knew the voters had died before the election date. In September 2020, he again pushed false claims about voter fraud by asserting, “The radical left are laying the groundwork to steal this election from my father,” adding, “Their plan is to add millions of fraudulent ballots that can cancel your vote and overturn the election,” asking “able-bodied” people to join an election security “army” for his father.

Trump Jr. was given a 12-hour restriction by Twitter in July 2020 after he promoted misinformation about COVID-19 by retweeting a video showing Houston doctor Stella Immanuel promoting hydroxychloroquine as a cure despite conflicting studies, and claiming that masks are unnecessary. Twitter later said that it restricted the ability to tweet or retweet for twelve hours for violating its COVID-19 misinformation policy.

In June 2020, during the coronavirus pandemic, Trump Jr. accused liberals of hypocrisy, for imposing restrictive measures and social distancing guidelines on businesses while holding the “Action for Black Trans Lives” protest for the rights of African-American transgender people.

Trump Jr., was shown in a promotion for Desert Tech (a gun company run by a polygamous group) on July 24, 2020 with the company’s founder, Nicholas Young, and firing the company’s sniper rifles. A marketing video on YouTube also includes an image of Trump Jr.

In 2020, Trump Jr. self-published the book Liberal Privilege: Joe Biden and the Democrats’ Defense of the Indefensible. The book was bought in bulk by the RNC. According to a source cited in The New York Times, Trump Jr. hired three researchers to collect information about Joe Biden. The book took three months to write. Donald Trump Jr. explained to the New York Times his reasons for writing the book: “While I had no plans for a book this year, I was stuck indoors like the rest of the nation during the pandemic,” he said and “I decided to highlight Biden’s half century of being a swamp monster, since the media wouldn’t do it”. In the same New York Times article, it stated why Donald Trump Jr. decided to self publish: “Because Mr. Trump has his own platform — and the promise of bulk purchases from the R.N.C. — he doesn’t need the publicity arm of a major publisher.” Although the article said the RNC would bulk purchase the book, the number of books that will be bought in bulk by the RNC hasn’t been released to the public yet.

The opportunity to go hunting in Alaska with Trump Jr. was a prize at a fundraising auction for Safari Club International in 2020.