Prius drivers waited patiently for the parking valets in front of Arianna Huffington's Brentwood home last night. Inside the politically aware and semi-socially connected gathered to toast Slate editor Jacob Weisberg's new book, The Bush Tragedy. Weisberg and his wife, Deborah Needleman, posed with a bushy-bearded Adrian Grenier as waiters passed hot mini burgers. Author/animal rights activist Matthew Scully, deep in conversation with journalist Andrew Breitbart, politely refused.

Copies of the book were stacked casually on tables. Needleman, the editor of Domino magazine (which also sponsored the event), designed the cover. Condé Nast-ette Clemmy Closson and Domino publisher Beth Brenner were also decoratively arranged. Masses of white flowers, masses of elaborately framed photos, including one of Arianna's daughter with Senator Barbara Mikulski. One onlooker thought Mikulski looked like a nun.

Moguls Mike Medavoy, George Stevens, and Sam Goldwyn towered over the rest of the crowd, but actress Christine Lahti, in heels, had to be the tallest person in the room, or maybe hot hyphenate Stephen Gaghan. West-side Angelenos are short and slight, as a rule. Has reducing one's carbon footprint gone too far?

Moving through the crowd, Arianna was stopped by an earnest guy who presented her with the new Penguin paperback edition of Karl Marx's Dispatches for the New York Tribune, edited by James Ledbetter. Is Marx the new hostess gift sensation? Is Domino planning a tribute to Marxist decor? Who knows? Huffington's halls are lined with stacks of books, including an annotated copy of The Rich are Different (pic below!). Even she needs to brush up.

Producer Lawrence Bender enthused about a documentary idea on nuclear disarmament—Gorbachev is said to be involved. Screenwriter Dale Launer told a funny story about LBJ. Los Angeles Times editor Nick Goldberg chatted with mediabistro blogger Kate Coe.

Author Anna David, back in town, was cracking up with Becket Cook. Sony TV optioned her roman á clef, Party Girl, and she's hard at work on her next. Tracey Ullman, wearing an arty cardigan, chatted about her new Showtime series.

Politicos came in all stripes—Mickey Kaus, John Amato, Roman Genn. Wonks were also well represented by Paul Kjellberg, Mark Kleiman and Nancy Snow. Non-wonks Mini Mortimer, Kim Serafin, Mary Alice Haney, and Zem Joaquin made amusing contrasts.

Huffington's next book, Right Is Wrong: How the Lunatic Fringe Hijacked America, Shredded the Constitution, and Made Us All Less Safe is due out in April.