Trump spent decades in the business world before getting into politics. However, he did run for president on the Reform Party ticket in 1999. He left the race early because of infighting not "conducive to victory."
Source: The Daily Beast
Along with managing various real estate properties with the Trump Organization, Trump has also played host on NBC's "The Apprentice," opened a modeling agency in his name, and purchased the Miss Universe and Miss USA competitions (which he has since sold).
Source: Business Insider
Donald Trump Jr. is President Trump's oldest son. Born in 1977, he attended boarding school in Pennsylvania and later earned his degree in finance and real estate from the Wharton School at the University of Pennsylvania.
He's worked for his father since 2001, managing his property portfolio as executive vice president of development and acquisitions at the Trump Organization.
Today, Donald Trump Jr. serves as a trustee for his father's revocable trust, which contains both physical and intellectual properties owned by the president.
Ivanka Trump was born in 1981. Besides running her own line of jewelry, clothing, shoes, and accessories, Ivanka Trump has also worked within the Trump empire.
In January, Ivanka resigned from her executive vice president position within the Trump Organization to move with her husband, Jared Kushner, and their three children to Washington, DC. Kushner is currently a senior adviser to President Trump.
Eric Trump is Donald Trump's third and youngest child with first wife Ivana. Eric has also worked within his father's real estate empire, overseeing the company's golf assets as well as Trump Winery in Charlottesville, Virginia.
Source: Time, Vanity Fair
Today he, along with his brother and another longtime Trump employee, oversees business at the Trump Organization.
Unlike her half siblings, Tiffany Trump didn't grow up playing in her father's office. Tiffany was raised by her mother, Marla Maples, outside of Los Angeles.
There, she attended Calabasas' Viewpoint School. She graduated from the University of Pennsylvania in 2016.
Melania Trump is a former model who married Donald in 2005. She was born and raised in Slovenia and is the only first lady to have been born outside the US other than Louisa Catherine Johnson, the wife of John Quincy Adams.
Melania has said that she will use her position as first lady to combat cyberbullying, adding that "our culture is too mean.” She and her son, Barron Trump, will continue to live in Trump Tower in New York during her husband's presidency.
Source: Business Insider
Melania says that Barron plays baseball and tennis, but he has a proclivity for his dad's favorite sport: golf. His parents have kept him out of the public eye as much as possible.
Source: Business Insider
In 2011 Reince Priebus left the law firm Michael Best & Friedrich to become the chairman of the Republican National Committee. Before he left to join President Trump's administration, he had been the longest-serving chairman of the RNC.
Kellyanne Conway has worked as a pollster for years and was formerly president and CEO of The Polling Company. She worked with Newt Gingrich in the 1990s and helped him run for president in 2012.
Source: The New Yorker
She signed on to the Trump campaign as their third campaign manager. She is currently serving as a counselor to the president.
Steve Bannon — who has worked at Goldman Sachs and as a film producer — most recently ran conservative news site Breitbart News before joining Trump's campaign.
Source: Business Insider