Number of voters	32	36	31	27	33	30
Billie Jean King	X				X	X
Picabo Street		X	X	X
Suze Orman	X			X	X
Elie Wiesel		X		X		X

The graduation committee has recommended four possible commencement speakers. They are putting the final decision to an approval vote of the students. The table above summarizes the results of the approval vote, where each column shows the number of people with a certain approval vote. Approvals are marked with an X. Find the winner under approval voting.