S SupremeCourtonMondaypavedthewayfor a NewYorkCityprosecutortoobtainformerPresidentDonaldTrump's taxreturnsandotherfinancialrecordsaspartof a criminalinvestigationdealing a blowtoTrump, whohasfiercelyfoughttokeephisfinancialpapersoutofthehandsofinvestigators.