On 10 February 1964, The Beatles booked the entire 7th floor of the hotel for one evening while they were in Washington to give a concert at the Washington Coliseum during their first American tour. Later that year in December, Denny Doherty performed his first show with John Phillips and Michelle Phillips, as The New Journeymen. With the addition of Cass Elliot, they would go on to be known as The Mamas & the Papas. The Conservative Political Action Conference took place at the Omni from 2006 through 2009. The Shoreham was featured in the 1987 film "No Way Out", when at an Inaugural Ball the character played by Kevin Costner, Commander Tom Farrell, first meets the character Susan Atwell played by Sean Young. In the 2003 film "Shattered Glass" about the journalism scandal at The New Republic perpetrated by Stephen Glass, the hotel is mentioned by name and a fictional version is depicted, as Glass claims to have attended a conference of Young Republicans held there. The hotel's owners accepted Henry L. Doherty as a minority financial partner. Doherty and his family moved into an apartment (now Suite 870) in the hotel, along with their maid, Juliette Brown. A few months after the Dohertys moved into the apartment, their maid died in the night. A short time later, the Dohertys' daughter Helen also died in the suite. The Dohertys moved out, and the apartment remained unoccupied for almost 50 years. The apartment was renovated into a hotel suite. But guests and hotel staff began to tell stories of faint voices, cold breezes, doors slamming shut and opening of their own accord, and televisions and lights turning on and off on their own. Guests in adjoining suites would complain of noises coming from the closed and empty Suite 870. Other occupants say furniture would be found out of place, and hotel staff said their housekeeping carts would move on their own. The Omni Shoreham Hotel has named the room the "Ghost Suite". Todd Scartozzi, an Omni Hotels manager, stayed in the Ghost Suite with his family and observed a walk-in closet light turning off and on of its own accord. The AAA gave the hotel four diamonds out of five in 2001. The hotel has maintained that rating every year, and received four diamonds again for 2016. Forbes Travel Guide (formerly known as Mobil Guide) declined to give the hotel either four or five stars in 2016, and did not put it on its list of "recommended" hotels. In March 2017, Cvent, an event management company, ranked the Omni Shoreham 79th in its annual list of the top U.S. hotels for meetings.