David S. Bernstein of The Boston Phoenix analyzed campaign contributions to Massachusetts state legislative candidates, finding that “of the 650 registered lobbyists and 167 active PACs in the state, just 20 prominent lobbying firms and 10 large PACs collectively pumped more than $1 million into legislative candidates’ war chests in the past two years. And of the 1000 lobbying interests on Beacon Hill, a mere two dozen of them are responsible for about $20 million, or a fifth, of total lobbying expenditures.”