USCIS 100:16. Who makes federal laws?USCIS 100:17. What are the two parts of the U.S. Congress?*USCIS 100:18. How many U.S. Senators are there?USCIS 100:19. We elect a U.S. Senator for how many years?USCIS 100:20. Who is one of your state’s U.S. Senators now?*USCIS 100:24. Who does a U.S. Senator represent?