The Goldwater campaign and the Future of Conservatism"" is the subtitle of this gloss on the decline of voice-winning Republican Party professionalism and the rise of the ideologically-minded new breed of right-leaning G.O.P.er, as seen in an ex-Senator's struggle to become President in 1964. It is also a personal declaration on the part of Mr. Hess, Goldwater's principal speech writer; it is the pious tone prompted by his partisanship that mars an otherwise readable piece of political analysis which could have taken for its own the title of William Buckely's ""Unmaking"" etc. For it was his frank avowal of an ideological position that led his party regulars to desert him and the supposedly non-partisan press to launch an unwarranted and decidedly hateful campaign against Goldwater. This Mr. Hess makes clear, and it will be up to the press to rebut his forthright presentation of what the man Goldwater said and did and how the press distorted it. (Probably the answers will be more distortions.) Still, ideology seems to fade into the background here and there is more talk of faith than works.