John Paul Stevens,
Gomez v. United States Chavez-Tesina…
“ After stressing the importance of jury selection and noting the specificity with which Congress defined magistrates' duties regarding other judicial proceedings, the majority concluded:"Additional duty is a residuum, granting the power to delegate any task not otherwise forbidden after we carve away that congery of duties that Congress never envisioned would be delegated. We are not persuaded that Congress intended to grant authority to judges to delegate to magistrates the authority to preside over felony trials and over activities integral to and intimately tied with trial." ”
