U.S. President Joe Biden's planned four-way summit in Jordan has been called off by Amman following a deadly strike on a hospital in Gaza. The Palestinian president Mahmud Abbas has also cancelled his scheduled meeting with Biden and has returned home amid mourning in Palestine in the aftermath of Gaza attack that has killed more than 300 Palestinians. Biden will arrive in Israel shortly to express solidarity with the Jewish state after Hamas killed 1400 Israelis on October 7. Watch.