The Supreme Court case of Wickard vs. Filburn (1942) centered around a farmer, Roscoe Filburn, who grew wheat for personal use beyond the quota set by the Agricultural Adjustment Act of 1938. The Court ruled that even though the wheat was for personal consumption and not for sale, it still affected interstate commerce and thus fell under federal regulation. This decision broadened the interpretation of the Commerce Clause, allowing for federal oversight over local activities if they could cumulatively affect interstate commerce. The ruling has significant implications for federal regulatory power and is often cited in discussions about states' rights versus federal authority.