 Stephen Craig argues for the 1972 elections, when Richard Nixon won a 49-state landslide.He notes that, "There seems to be consensus on the appropriate name for the sixth party system... Changes that occurred during the 1960s were so great and so pervasive that they cry out to be called a critical-election period.The new system of candidate-centered parties is so distinct and so portentous that one can no longer deny its existence or its character."