Mercado Parts the Crowds for Insiders

• By Anna Palmer
• Roll Call Staff
• Aug. 28, 2008, Midnight

Moses Mercado isn’t just any superdelegate. The longtime Congressional aide turned Ogilvy Government Relations lobbyist is an operator. Mercado, who is attending his fourth Democratic National Convention, is part Democratic Party ambassador, part donor appeaser and, deep down, still the consummate staffer.