Final answer:
There is no automatic assumption of the chairmanship by a committee member if the chairman does not designate a committee chairman. The process usually involves the committee electing a new chair or the leadership appointing one.
Step-by-step explanation:
When the chairman of a legislative committee does not designate a committee chairman, there is usually no automatic assumption of the chairmanship by a committee member.
Typically, in both the House of Representatives and the Senate, the majority party members serve as committee chairs, empowered by the majority leadership.
Such chairs play a crucial role, controlling the committee's agenda, including meeting schedules, hearings, and bill considerations. If a chairperson is not designated, the committee members may need to elect one from amongst themselves, or the presiding officer or party leadership of the respective chamber may appoint one.
Committee assignments are highly significant, often shaping the careers of members of Congress and influencing the legislative process.
Without explicit rules regarding automatic succession, the process for selecting a chairperson in the absence of designation typically involves active decision-making by committee members or the chamber's leadership.