Where have all the moderate Republican's gone?

I came across an interesting opinion article in the Washington Post. In it, Joe Schwarz talks about being voted off the Ballot in my home district, Michigan's 7th congressional district. He talks about how he feels his party is moving to far to the right, much farther than most of American is. He looks at this district as somewhat of a microcosm of American politics as a whole in this regard. He talks about how different, some times polar opposite, than he is of the candidate his party replaced him with on this year's ballot. This is not good for the country that a reasonable man like Schwarz is discarded by his party.

http://www.washingtonpost.com/wp-dyn/content/article/2006/09/15/AR2006091500984.html