MUST HAVE LOGICAL EXPLANATIONS TO ANSWER. OR YOU WILL BE REPORTED FOR INSUFFICIENT ANSWERING!! Which is not a duty of a member of Congress?

voting for a bill or proposed law
serving on a committee
declaring a law unconstitutional
creating and proposing legislation
participating in a major party

Declaring a law unconstitutional

Explanation:

The role of congress members is to create laws and oversee the executive. In turn, the role of the judiciary is to monitor whether the constitution is being obeyed and, therefore, to analyze the constitutionality of the laws formulated by congressmen. Thus, it is for the supreme court to consider whether the laws are constitutional or exceed the limits imposed by the constitution.

declaring a law unconstitutional

Explanation:

The role of congress members is to create laws and oversee the executive. In turn, the role of the judiciary is to monitor whether the constitution is being obeyed and, therefore, to analyze the constitutionality of the laws formulated by congressmen. Thus, it is for the supreme court to consider whether the laws are constitutional or exceed the limits imposed by the constitution.

answer; the president uses mass media to gain support for policies;

a is your answer hope this ! : )