The letter presupposes the reader remembers Dunphy's letter - which is unlikely.  You may have to quote the specific points you disagree with.

Who did the BBC show chewing on his necktie?

ARGeezer:

America McInnis, from northern Ireland

By the logic of Dunphy's letter, the majority of American's who oppose McCain/War in Iraq etc. are anti-Americans.  How dare he accuse you of being anti-American!

I would put para. 3 at the top

Para. 4 gives good historical perspective

Could mention other "October surprises" - Reagon seeking to prevent Iranian Hostage release before election, Nixon delaying 1968 Paris Peace negotiations until after election in support of proposition that it is not ludicrous to suggest that domestic US politics impacts on the conduct of foreign policy.

Otherwise reads very well.

Please send it!

It's time I got out of this game....