Real-estate developer Richard Lefrak‘s smashing surprise 65th birthday party last night lasted until the wee hours and attracted a truly remarkable cast of characters, including Donald Trump (whose reaction to the disco dress decree was to don a frock coat), Senator Chuck Schumer, Mayor Mike Bloomberg (in baggy tomato red pants), Woody Allen, and entertainers Nile Rodgers and Earth, Wind and Fire.  But the evening’s best juxtaposition, if its oddest couple, was the one above:  the controversial conservative contributor and 740 Park resident David Koch and New Jersey’s Democratic Senator, Frank Lautenberg.