They are the senior members of the senate and house.
what is a select commitee?
Commitee
The plural of chairperson is chairpersons.
Chairpersons is the plural form.
It depends on what committee you are talking about.
Seniority system
Chairpersons of congressional committees are determined by the political party that holds the majority in each chamber of Congress. Typically, the majority party's leadership, including the Speaker of the House or the Senate Majority Leader, selects committee chairs based on seniority, expertise, and loyalty to party priorities. In the case of the House, committee chairs are often chosen through a formal vote by the majority party's members. The Senate employs a similar process, though it may also consider individual Senators' interests and past performance.
The Olympic Games are organized and governed by the International Olympic Commitee (IOC). It sets the general program, chooses the city where the games are to be held, and determines the standards of amateurism.
The Commitee of 19
Seniority.
Student Nonviolent Coordinating Commitee
Probably your green community commitee.