http://www.opensecrets.org/lobby/top.php?indexType=s&showYear=2014 http://www.opensecrets.org/lobby/top.php?indexType=s&showYea... you're right to ask for a cit

http://www.opensecrets.org/lobby/top.php?indexType=s&showYear=2014 http://www.opensecrets.org/lobby/top.php?indexType=s&showYea... you're right to ask for a citation, I didn't specifically look it up before making the statement. It seems they are at least top 10 in recent years.