Answer :

taskmasters
I think you forgot to give the options along with the question. I am answering the question based on my knowledge and research. A primary source for getting specific information on a particular bill is the Congress record. I hope that this is the answer that has actually come to your desired help.

I believe the answer is: Congregational record

Congregational record filled with formal writing on the debates and proceedings that made by the members of united states Congress. By reading this, journalists could find specific information regarding a particular bill and add it as a component to their stories.