When he was inaugurated on January 20, 2017, at 70 years old, Trump was the oldest person to assume the presidency.

"We, the citizens of America, are now joined in a great national effort to rebuild our country and to restore its promise for all of our people," Trump said in an inaugural address in 2017. "Together, we will determine the course of America and the world for years to come."

Biden became the oldest president at 78 years and 61 days when he was inaugurated on January 20, 2021.

However, Trump surpassed him on January 20, 2025, at 78 years and 220 days years old.

"The golden age of America begins right now," Trump said in an inaugural speech. The president also announced a series of impending executive orders that include immigration reform and the establishment of an External Revenue Service.

At his first swearing-in ceremony, Trump was flanked by his wife Melania Trump and his children Barron, Ivanka, Eric, Donald Jr., and Tiffany.

Tiffany Trump and her husband Michael Boulos, Lara Trump and Eric Trump, Ivanka Trump and Jared Kushner, and Donald Trump Jr. all attended the 2025 inauguration.

Melania Trump and Barron Trump stood directly alongside the president during his swearing-in ceremony, with his other children, Joe Biden, and Kamala Harris also present.

Though he was only 10, the youngest Trump son was nearly taller than both his parents at his father's first inauguration.

Barron moved into the White House five months after his father was sworn in and became the first boy to live in the historic home since John F. Kennedy Jr. lived there in 1961.

Barron, 18, will not live in the White House this time around. He is a freshman at New York University and lives in off-campus housing, People reported.

Melania lived in the White House during her four years as First Lady and was welcomed into the home by the Obamas on her husband's first day in office.

She wore a powder-blue suit by Ralph Lauren.

For the 2025 inauguration, the First Lady opted for a navy blue coat and skirt by American designer Adam Lippes. She paired the look with a wide-brimmed hat by Eric Javits, another American designer.

The extent of Melania's role in her husband's second administration remains unclear.

People reported that the First Lady will live it the White House at least part-time, dividing her time between Washington, New York (where Barron is in school), and Mar-a-Lago.

"I will be in the White House. And when I need to be in New York, I will be in New York. When I need to be in Palm Beach, I will be in Palm Beach," she said in an interview with Fox & Friends on January 13. "My first priority is to be a mom, to be a first lady, to be a wife."

Melania Trump stood on the podium alongside her husband as he was sworn in for a second time on January 20, 2025.

According to her official White House bio, Ivanka Trump served as a senior White House advisor during Donald Trump's first term.

She focused on issues such as the "education and economic empowerment of women and their families" and boosting jobs and economic growth through skills training and entrepreneurship, according to the bio.

When Trump launched his third presidential campaign in 2024, Ivanka announced that she was stepping away from politics and would not play an official part in his next administration.

"I love my father very much," she said in a statement shared on social media. "This time around, I am choosing to prioritize my children and the private life we are creating as a family. I do not plan to be involved in politics. While I will always love and support my father, going forward, I will do so outside the political arena."

Kushner served alongside his wife as a senior advisor in his father-in-law's first administration.

He played a key role in brokering the Abraham Accords, a set of agreements that established diplomatic relations between Israel, Bahrain, Morocco, Sudan, and the United Arab Emirates.

CNN and the Israeli newspaper Israel Hayom reported that Jared Kushner is expected to serve as an informal advisor to President Trump focusing on matters related to the Middle East.

Donald Trump Jr. did not serve in an official capacity within the White House during his father's presidency.

During Trump's first presidential term, he and his brother, Eric Trump, continued overseeing the Trump Organization, which manages the Trump family's real-estate holdings and is currently appealing its civil-fraud case verdict.

Though not overly political, Tiffany spoke at the Republican National Conventions in 2016 and 2020.

Eric has also appeared alongside his family at multiple campaign events throughout Trump's political career.

It wasn't widely announced prior to Inauguration Day which members of the Trump family would attend. However, all five of the president's children arrived together for the ceremony.

Trump Jr.'s rumored ex-girlfriend Kimberly Guilfoyle, who he started dating in 2018, was not spotted at the inauguration, though she did attend a few pre-inauguration events. Page Six reported their breakup in December, and Trump Jr. has since been linked to Florida socialite Bettina Anderson.

Tiffany did not speak at the 2024 Republican National Convention and has only made a few political appearances in recent years, including the inauguration. She and her husband, Michael Boulos, are expecting their first child.

Eric Trump is expected to continue leading the Trump Organization as executive vice president.

"The tradition of the presidential inauguration embodies the beauty of American democracy and today we had the honor to dress our first lady, Mrs. Melania Trump," Lippes said in a statement to Vogue. "Mrs. Trump's outfit was created by some of America's finest craftsmen and I take great pride in showing such work to the world."

Melania Trump also wore a wide-brimmed hat by Eric Javits.

Jill Biden's purple ensemble was designed by Ralph Lauren.

Amazon CEO Jeff Bezos, Apple CEO Tim Cook, OpenAI CEO Sam Altman, Meta CEO Mark Zuckerberg, and Google CEO Sundar Pichai were seated in the Capitol Rotunda in front of incoming members of Trump's cabinet. Other politicians, such as Florida Gov. Ron DeSantis, watched the inauguration from an overflow room.

He used the same two Bibles during his first inauguration in 2017.

JD Vance and Usha Vance met at Yale Law School.

Usha Vance clerked for Kavanaugh in the US Court of Appeals; she also clerked for Supreme Court Chief Justice John G. Roberts. She worked as a litigator at Munger, Tolles & Olson and quit her job when JD Vance was chosen as Trump's running mate.

Vance received the Bible as a gift from his Mamaw, Bonnie Blanton Vance, when he left for his service in the Marine Corps.

In a previous statement to Business Insider, the "American Idol" alum said she was "honored" and "humbled" to sing at the event.