Advocates note that lawmakers who serve for decades often build deep relationships with lobbyists and donors, which critics argue can create insider dynamics that newer legislators are less enmeshed in. Over decades in office, lawmakers can accumulate close professional and personal ties with the same lobbyists and industries they're meant to oversee, a dynamic critics say fresh faces are less likely to have. Advocates argue this dynamic, even if difficult to prove definitively, is a reasonable concern shaping the case for turnover. Advocates argue this dynamic, though hard to prove definitively, remains a reasonable concern.