Former legislators who lobby exacerbate the effects of financial resources on the relative political influence that various organized interests achieve. These lobbyists receive more income and achieve favorable policy outcomes more often than other lobbyists. The value of these revolving-door lobbyists, however, is contingent on the continued presence of former colleagues in legislatures. Former legislators achieve influence because of their insider connections, and membership turnover among incumbents decreases the value of this asset for interest groups. I examine the incomes and clienteles of former legislators who lobbied in the American states over seven decades. Turnover is a consistent, negative predictor of revolver value. This effect is enhanced by the presence of legislative staff support. This study is the first to examine the value of revolving-door lobbyists in the state legislatures. My findings imply that reforms that induce turnover help to level playing fields of political advocacy among interests with different levels of financial resources.