Isn’t It Rich?A new book alleges that Bill Clinton had an affair with socialite Denise Rich and that Nancy Pelosi knew about it. Barack Obama asked for Beyoncé’s autograph at a fund-raiser at L.A. Reid’s house on the Upper East Side. Star Jones signed a deal to host a show on Court TV. Katie Homes may have chosen her new upcoming movie, a girl-buddy flick, because it had no sex scenes that might make hubby Tom Cruise jealous. Catherine Zeta-Jones and Michael Douglas dined next to Barack Obama at the Waverly Inn. Reese Witherspoon and Jake Gyllenhaal may be hooking up. An intern claims Lizzie Grubman owes her more than $6,000 in back wages. Stewardess diddler Ralph Fiennes frolicked naked in a pool with four women at a hotel in Belgium.