Photos: Donald Trump in the public eye  Business mogul Donald Trump announces his candidacy for the U.S. presidency at Trump Tower on Tuesday, June 16, 2015, in New York City.  Photos: Donald Trump in the public eye  Donald Trump attends golf legend Jack Nicklaus' Congressional Gold Medal ceremony on March 24, 2015, in the U.S. Capitol Rotunda. Trump announced on March 18 that he had launched a presidential exploratory committee.  Photos: Donald Trump in the public eye  Trump speaks to guests at the Iowa Freedom Summit on January 24, 2015, in Des Moines, Iowa.  Photos: Donald Trump in the public eye  As chairman and president of the Trump Organization and the founder of Trump Entertainment Resorts, Trump speaks during day two of the Republican Leadership Conference on May 30, 2014, in New Orleans.  Photos: Donald Trump in the public eye  Former U.S. vice presidential candidate and Alaska Gov. Sarah Palin and Trump walk toward a limousine after leaving Trump Tower, at 56th Street and Fifth Avenue, on May 31, 2011, in New York City.  Photos: Donald Trump in the public eye  Trump looks out the window of his limousine after visiting Newick's Lobster House on April 27, 2011, in Dover, New Hampshire.  Photos: Donald Trump in the public eye  Trump speaks to the media at Pease International Tradeport on April 27, 2011, in Portsmouth, New Hampshire.  Photos: Donald Trump in the public eye  Trump speaks to a crowd at the Palm Beach County Tax Day Tea Party on April 16, 2011, at Sanborn Square in Boca Raton, Florida.  Photos: Donald Trump in the public eye  Trump and his wife, Melania, attend the Michael Kors Spring 2011 fashion show during Mercedes-Benz Fashion Week at The Theater at Lincoln Center on September 15, 2010, in New York City.  Photos: Donald Trump in the public eye  Trump kisses Miss Universe 2009 Stefania Fernandez as they arrive at the 2010 Miss Universe Pageant at the Mandalay Bay Events Center on August 23, 2010, in Las Vegas.  Photos: Donald Trump in the public eye  Trump and his children Eric (second from left), Ivanka and Donald Jr. attend the ribbon-cutting ceremony for Trump SoHo New York at Trump SoHo on April 9, 2010, in New York City.  Photos: Donald Trump in the public eye  Trump, his daughter Ivanka, wife Melania and son Barron attend the "The Trump Card: Playing to Win in Work and Life" book launch celebration at Trump Tower on October 14, 2009, in New York City.  Photos: Donald Trump in the public eye  Trump and professional tennis player Serena Williams attend the Gucci cocktail party for the Foundation For the Advancement of Women Now at Gucci Fifth Avenue on September 16, 2009, in New York City.  Photos: Donald Trump in the public eye  Trump and his wife, Melania, left, attend the launch of Trump International Hotel and Tower Dubai with model Heidi Klum on June 23, 2008, at the Park Avenue Plaza in New York City.  Photos: Donald Trump in the public eye  Trump attends the debut of a Lego replica of the Trump International Hotel & Tower Dubai on June 23, 2008, at Central Park in New York City.  Photos: Donald Trump in the public eye  Trump attends the announcement of a partnership with Affliction Entertainment on June 5, 2008, at Trump Tower in New York City.  Photos: Donald Trump in the public eye  Trump attends the Donald Trump Friars Club Roast Luncheon at the New York Hilton on October 15, 2004, in New York City.  Photos: Donald Trump in the public eye  Trump poses with the new Donald Trump 12-inch talking doll on September 29, 2004, at the Toys 'R' Us store in New York City.  Photos: Donald Trump in the public eye  Trump arrives at "The Apprentice" casting call in Trump Tower on July 30, 2004, in New York City.  Photos: Donald Trump in the public eye  Trump dips Marla Maples after the couple married in a private ceremony amid tight security at the Plaza Hotel on December 20, 1993, following a six-year courtship.  Photos: Donald Trump in the public eye  Trump and his wife, Ivana, arrive at a social engagement on December 4, 1989, in New York.
Some reports suggest Ivanka Trump and her siblings worried that Lewandowski lacked the experience to lead their father through a national campaign