Final answer:
The House seniority system for committee leadership and committee staffing is decided based on factors such as seniority, party composition, and individual requests. Committee chairs are usually chosen based on seniority, and the majority party has authority in determining committee assignments.
Step-by-step explanation:
The House seniority system for committee leadership and committee staffing is decided based on a few factors. Firstly, committee chairs are usually chosen based on the seniority system, which is determined by the number of years of service in the House. The more seniority a member has, the higher the chance of being selected as a committee chair.
Additionally, party composition also plays a role in committee assignments. The majority party in the House has the authority to determine who sits on each committee and who becomes the committee chair.
Finally, individual members of Congress can also request specific committee positions based on their expertise and interests, and the leadership of each chamber also has a role in selecting the committee chairs.