Politics has gone international. The British Labor Leader is here campaigning for Prime Minister of Britain, and fairly soon John F. Kennedy will be over in Italy and Germany campaigning for reelection. Everybody’s now whistle-stopping through somebody else’s country, usually ours. Washington has still not adjusted to this third-man role. It keeps forgetting that anything said here may be used by one side or another in some election campaign, and that it may, by accident, be the decisive element in the final vote.