Final answer:
The U.S. Nazis were allowed to march in Skokie because the freedom of speech and assembly are constitutionally protected rights. This reflects James Madison's views in Federalist No. 10 on protecting against the tyranny of a majority by ensuring a diversity of competing interests.
Step-by-step explanation:
The U.S. Nazis were indeed allowed to march in Skokie, Illinois, after a legal battle that tested the limits of free speech. This event is an example of the extent to which the rights enshrined in the Bill of Rights, especially the freedom of speech and assembly, are protected even when the views expressed are widely considered offensive or abhorrent.
James Madison addressed the concept of factions and the protection against a singular majority's dominance in Federalist No. 10, arguing that a large republic would naturally contain so many differing interests that it would be difficult for any one faction to gain undue power. The decision to allow the Nazis to march can be seen as an illustration of the complexity of balancing individual rights with societal norms, a concept deeply rooted in the debates that shaped the U.S. Constitution and Federalist Papers.