Legislators may gain skill in maneuvering in the legislative arena with time, but they also gain a propensity for power grabbing and self-advancement. Politicians of long standing use their knowledge of the working of the legislature as much for the lobbyists and interest groups, who they prefer to work with rather than young, inexperienced legislators. The power of lobbyists is magnified by the solidity of the channels of political influence created by high rates of incumbency. Term limits actually serve to restrict the power of interest groups, and instead places emphasis on the production of progressive legislation.