The ties that bind. Remember Rahm Emanuel's rent-free D.C. apartment? The owner: A BP adviser | Top of the Ticket | Los Angeles Times

Greenberg's consulting firm was a prime architect of BP's recent rebranding drive as a green petroleum company, down to green signs and the slogan "Beyond Petroleum."

Greenberg's company is also closely tied to a sister Democratic outfit -- GCS, named for the last initials of Greenberg, James Carville, another Clinton advisor, and Bob Shrum, John Kerry's 2004 campaign manager.

According to published reports, GCS received hundreds of thousands of dollars in political polling contracts in recent years from the Democratic Congressional Campaign Committee.

Probably just a crazy coincidence. But you'll never guess who was the chairman of that Democratic Congressional Campaign Committee dispensing those huge polling contracts to his kindly rent-free landlord.