The Structure of Congress DIRECTIONS: Fill-in-the-Blank Enter the appropriate word(s)to complete the statement. 1. Because the __ __ __ acts as a "traffic officer" to block the flow of major legislation, it can stop a House bill from reaching a floor vote. 2. A temporary committee formed to investigate an issue is known as a __ __ 3. Since Congress is a __ or two-chamber, legislature , there are checks and balances within Congress. 4. The drawing of district boundaries to benefit a party is known as __ C is a member of a congressperson's personal staff who handles growing constituent requests.