Red Shoe Affair birthday parties. The one in phot is 2010 at 65th B-day. The tradition started in 1993 per article.

https://www.huffingtonpost.com/2009/10/26/tony-podesta-has-a-party_n_333819.html

List of attendees seen at this party:

Spotted Friday night at lobbyist Tony Podesta’s 65th birthday party inside the National Museum of Women in the Arts museum: wife Heather Podesta; brother, head of Center for American Progress and former co-chair of Obama’s transition team John Podesta; Speaker of the House Nancy Pelosi (D-Calif.) with husband Paul Pelosi; Sen. Tom Udall (D-N.M.); Rep. Jane Harman (D-Calif.) and husband Sidney Harman; Rep. Brad Sherman (D-Calif.); Rep. Shelley Berkley (D-Nev.); Rep. Steve Cohen (D-Tenn.); actress from television’s “thirtysomething” Polly Draper and her husband, jazz pianist Michael Wolff; Beth Dozoretz; Charlie Cook; Meredith Harman; Marlene Malek; Project on Government Oversight’s Adam Zagorin; The Washington Examiner’s Tim Carney and Tara Palmeri; NMPA’s David Israelite; and Lisa Tseng.

https://duckduckgo.com/l/?kh=-1&uddg=https%3A%2F%2Fwww.politico.com%2Fclick%2Fstories%2F0910%2Fpodesta_celebrates_65th_birthday_in_museum.html