Trump's comments came after senior US officials demanded that Iran make a public statement saying the Strait of Hormuz is open and that ships crossing the vital corridor won't be attacked any longer.
Khamenei's flag-draped coffin, and those of his family killed Feb. 28 in an airstrike will be taken through the streets of Tehran on their way to Mehrabad International Airport.
Mourners wept at the sight of Khamenei's coffin alongside those of his family members also killed in the airstrike, with some chanting, "Our word is one! Revenge! Revenge!"
The dead being honored include a son-in-law, his eldest daughter, a 14-month-old granddaughter, and the wife of Iran's new Supreme Leader Ayatollah Mojtaba Khamenei.