 
<translate> Ajụjụ. Ihe ndị gbara ya gburugburu: Kemgbe e hiwere Ụlọikpe Kasị Elu na 1789, mmadụ 17 ejewo ozi dị ka onyeisi ndị ọkàikpe. Onye mbụ bụ John Jay (1789 - 1795). Onye ọkaikpe ukwu ugbu a bụ John Roberts (kemgbe 2005). Anọ - Edward Douglass White, Charles Evans Hughes, Harlan Fiske Stone, na William Rehnquist - ka a họpụtara ka ha bụrụ ndị ọkaikpe na-esote ya ma mesịa họpụta ha dị ka ndị ọkaikpe ukwu.  Ajụjụ: onye bụ onye ọkaikpe ukwu nke United States Supreme Court? Zaa ya. John Roberts Olee ihe e kwuru nke na-egosi na azịza ya bụ eziokwu? <eng> Question. Context: Since the Supreme Court was established in 1789, 17 persons have served as chief justice. The first was John Jay (1789 -- 1795). The current chief justice is John Roberts (since 2005). Four -- Edward Douglass White, Charles Evans Hughes, Harlan Fiske Stone, and William Rehnquist -- were previously confirmed for associate justice and subsequently confirmed for chief justice separately.

Question: who is the chief justice of the united states supreme court?
Answer. John Roberts
What step-by-step reasoning justifies that answer? 