And he does it very eloquently.

As son of a Republican President, Dwight D. Eisenhower, it is automatically expected by many that I am a Republican. For 50 years, through the election of 2000, I was. With the current administration’s decision to invade Iraq unilaterally, however, I changed my voter registration to independent, and barring some utterly unforeseen development, I intend to vote for the Democratic Presidential candidate, Sen. John Kerry.

The fact is that today’s “Republican” Party is one with which I am totally unfamiliar. To me, the word “Republican” has always been synonymous with the word “responsibility,” which has meant limiting our governmental obligations to those we can afford in human and financial terms. Today’s whopping budget deficit of some $440 billion does not meet that criterion.

Responsibility used to be observed in foreign affairs. That has meant respect for others. America, though recognized as the leader of the community of nations, has always acted as a part of it, not as a maverick separate from that community and at times insulting towards it. Leadership involves setting a direction and building consensus, not viewing other countries as practically devoid of significance. Recent developments indicate that the current Republican Party leadership has confused confident leadership with hubris and arrogance.

Read it all — it’s great.