A speech by Netanyahu would almost certainly expose election-year divisions in the U.S., where a growing number of Democrats have turned away from the right-wing prime minister
In a letter to the students, Khamenei described them as part of the "Resistance Front" destined to win "with the permission of God," expressing solidarity and empathy for their support of Palestinians.
The ICJ amended an earlier order and demanded Israel immediately halt its military offensive in Rafah, a city in southern Gaza where Tel Aviv sent forces May 6.
Three like-minded European countries - Spain, Ireland and Norway - have announced they will formally recognise the Palestinian state, seven months after the outbreak of the war in Gaza.