President Recep Tayyip Erdoğan's first visit to the affected area came as the outrage intensified because of the tight election that will take place in three months.
Hersh, now 85 years old, had won the Pulitzer Prize, considered the highest award in investigative journalism, for exposing the US military's brutal Mai Lai massacre in Vietnam.
On Tuesday night at the national Capitol, President Biden delivered his second State of the Union address, the first after he lost the majority in the US House of Representatives.
Salman Rushdie had suffered severe knife injuries during the attack in New York last year. He has lost one eye and has taken months to recover from multiple nerve and muscle injuries.