Forbetterorforworse,VicePresidentDickCheneywasthelastdecade’smostinfluentialAmericanpolitician.Andyet,heremainscloakedinmystery.Cheney’spoliticalbrandwasdedicatedtore-establishingtheexecutiveauthority,privilege,andsecrecyendemictothepre-Watergateera.Inshort,wedon’tknowDick.ThisexhaustivetreatmentofCheney’scareershedsmuch-ne.. …