Primary elections always matter. But some primary elections matter more than others; indeed, some primary elections define the character not just of a particular official's term, or even of a legislative or congressional session, but of the nation's politics for years to come.
Residents of the state of Wisconsin, where my family has resided for seven generations, know this better than the citizens of most states. Sixty years ago this month, Republican primary voters turned out one of the greatest senators in the history of the United States, Robert M. La Follette Jr., and replaced him with one of the lousiest excuses for an elected leader this country has ever produced, Joe McCarthy.
The Wisconsin Republican Senate primary of 1946 set the wheels in motion for the Red Scare of the 1950s, to which McCarthy lent his name and his sordid tactics. It is true that Richard Nixon and others would have ginned up some sort of anti-communist propaganda campaign, but it is doubtful that it would ever have done the damage to civil liberties and public life that McCarthy achieved with his unparalleled lies and cruelty.
That Republican primary also began the long descent of the Grand Old Party, which had once laid a far stronger claim than the Democratic Party to the progressive mantle, into the pit of petty bigotry, reaction and neoconservative fantasy that now defines it.
cont'd...
http://www.thenation.com/blogs/thebeat?bid=1&pid=115714