523 U.S. 224 (1998) Cited 6,537 times 21 Legal Analyses
Holding that the fact of a prior conviction is not an element of an offense even when it increases a defendant's statutory maximum term of imprisonment
422 U.S. 806 (1975) Cited 12,558 times 23 Legal Analyses
Holding that a defendant's right to self-representation was denied when he made his requests "weeks before trial" without any indication that the defendant was required to reassert his request during the trial
554 U.S. 164 (2008) Cited 1,139 times 7 Legal Analyses
Holding that the court did not violate the Sixth Amendment by appointing counsel against defendant's objection where defendant was competent to stand trial but not competent to conduct trial proceedings by himself