From The Hill on December 20, 2007: "Three political aides on Sen. Barack Obama’s (D-Ill.) payroll were registered lobbyists for dozens of corporations, including Wal-Mart, British Petroleum and Lockheed Martin, while they received payments from his campaign, according to public documents.
The presence of political operatives with long client lists on Obama’s campaign contrasts with his long-held stand of campaigning against the influence of special interests. Obama has even refused to accept contributions from lobbyists or political action committees (PACs)."