Never mind that he's running for mayor of Chicago. The Nov. 4 event (two days after the election) is being hosted by David Geffen, Robert Iger, Peter Chernin, Haim Saban, and of course, Ari Emanuel, Rahm's brother (and co-CEO of WME Entertainment, what used to be known as William Morrris). From Deadline.com:
All the men are Democratic Party donors, with Geffen, Chernin, Ari Emanuel, and Saban the most politically active, and Geffen and Saban over the years among the party's biggest single donors. Because of his brother and because of his Democratic Party fundraising, Rahm knows all the major Hollywood players who are active in politics very well.