The Cat in the Hat which George W. Bush's State of the Union promises were contrasted with the Cat vowing (in part), "I can hold up the cup and the milk and the cake! I can hold up these books! And the fish on a rake!" In 2007, during the 110th Congress, Senate Majority Leader Harry Reid compared the impasse over a bill to reform immigration with the mess created by the Cat. He read lines of the book from the Senate floor. He then carried forward his analogy hoping the impasse would be straightened out for "If you go back and read Dr. Seuss,
The Cat in the Hat for the series, including "The Cat in the Hat Comes Back" (1958), "Green Eggs and Ham" (1960), "Hop on Pop" (1963), and "Fox in Socks" (1965). He initially used word lists of limited vocabularies to create these books, as he had with "The Cat in the Hat", but moved away from the lists as he came to believe "that a child could learn any amount of words if fed them slowly and if the books were amply illustrated". Other authors also contributed notable books to the series, including "A Fly Went By" (1958), "Sam and the Firefly" (1958), "Go, Dog.