Former President Donald Trump paid a visit to Ohel Chabad Lubavitch in New York to mark the anniversary.
An Ohel is a structure built around the grave of a prominent Jewish person. This site holds Rabbi Menachem Mendel Schneerson and his father-in-law, Rabbi Yosef Yitzchok Schneersohn, who were rabbis of the Chabad-Lubavitch dynasty.
As is customary, Trump wrote a letter to the rabbis, read it quietly, then tore it up and placed in the enclosed area. He then placed a rock on top of one of the tombstones, which is a customary Jewish way to honor the deceased.