Drinks with Game Change authors Mark Halperin and John Heilemann

Authors Mark Halperin and John Heilemann talk to guests as they sign books.

Washington media's social set all turned out on the rooftop of the W Hotel Monday night for a party to celebrate the hottest political book of the season, "Game Change," co-authored by TIME's Mark Halperin and New York Magazine's John Heilemann.

The authors were set up in the corner signing books, and about 75 partygoers weaved through the darkened P.O.V. bar. Everyone had an opinion about the book, and even those who were on the record questioning some of its contents were happy to celebrate its success.

One of them was Jay Carney, formerly of TIME and now a spokesman for Vice President Joe Biden. Earlier in the day, Carney was quoted saying the authors delivered a "gross misimpression" of tensions between President Barack Obama and Vice President Joe Biden, who have a strong working relationship in the White House. But Heilemann said Carney was "magnanimous" when he arrived at the fete. "He was great."

In the crowd: Bloomberg's Margaret Carlson, Politico's Jim VandeHei, amd Washingtonian's Garrett Graff.

— Report and photographs by Christina Wilkie

Ray Farmer, Matt Weiner and Erica Rancatore

NBC's Andrea Mitchell talks to Mark Halperin

Aspen Institute CEO Walter Isaacson and Robin Goolsbee

C-SPAN's Steve Scully and News Channel 8's Brittany McHenry

CNN's Ed Henry and The Washington Post's Phil Rucker

Time Magazine's Betsy Burton and The Washington Post's Katharine Zaleski

Rufus Lusk, Ysbrandt Marcelis, and Washington Life's Kevin Chaffee

Robin Goolsbee and White House Council of Economic Adviser's Austan Goolsbee