Most significantly, the Lincoln Highway inspired the Federal Aid Highway Act of 1956, also known as the National Interstate and Defense Highways Act (Public Law 84-627), which was championed by President Dwight D. Eisenhower, influenced by his experiences as a young soldier crossing the country in the 1919 Army Convoy on the Lincoln Highway. Today, Interstate 80 (I-80) is the cross-country highway most closely aligned with the Lincoln Highway. In the West, particularly in Wyoming, Utah and California, sections of I-80 are paved directly over old alignments of the Lincoln Highway.