When voting on legislative matters, modern members of congress must act as?

The congress should review the bill initiated by the representatives. The bill will go through a tedious process before approval. The congress will review the pros and cons of the bill and they will vote if it is to be endorsed to the next level or to be amended.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.

use wikipedia, i think they have this.