Pros And Cons Of Effective Bipartisan Relations

In order to improve bipartisan relations and increase the public cooperation among diverse groups, I propose three options to successfully obtain the goal.
First of all, having only two major parties has separated the United States, so a third party could be created to maximize vocalized opinions. This third party would have different views, of course, but in the end, the tripartisan relationship could be one of checks and balances. Having one party control the government is highly dissatisfactory for many people, but it is nearly impossible to have our government be equally represented by both sides. If each party was checked by two others and check the others, perhaps our government would be more diversely constituted.
My second proposition