People join parties because they share certain basic principles about government. For all the griping that, as George Wallace once said, "there's not a dime's worth of difference between the parties," the differences between the Republicans and Democrats remain vast. Larry Sabato, for example, in his 1988 book The Party's Just Begun, reports survey findings that show "there is no better or more consistent indicator" of ideological difference "than partisan affiliation." And while the Democrats have certainly moved rightward in the last decade, so have the Republicans, keeping a healthy distance between the two parties.