CAMPAIGN rhetoric is not always up to the level of 1884, when a Republican helped doom his candidate by calling the Democrats the "party of Rum, Romanism and Rebellion." But this season's accumulation of banalities, balderdash, wit (sometimes unintended) and invective is impressive enough. Some of last week's prize entries:
> "I think we can safely say that the only consistent thing about Senator McGovern is his consistent inconsistency."Spiro Agnew.
> The investigation of the Hiss case "was basically a Sunday school exercise compared to the amount of effort that was put into this [the investigation of the Watergate break-in]."Richard Nixon.
> "I've changed...