First, it creates a national government consisting of a legislative, an executive, and a judicial branch, with a system of checks and balances among the three branches. Second, it divides power between the federal government and the states. And third, it protects various individual liberties of American citizens.
Pass a law requiring parties to hold a direct primary.
The second one, I believe.
Hope this helps
C) Henry Tift is the answer you need I think