Palestinian and Israeli leaders have blamed each other for the deadly explosion, which sparked protests throughout the region and the cancellation of the planned summit. Even before the explosion, Arab leaders had decried as excessive an Israeli bombing campaign in Gaza that has killed thousands. Biden repeatedly and vociferously offered support for Israel in the wake of the Oct. 7 incursion by Hamas. US officials said Biden would speak by telephone with Palestinian Authority leader Mahmoud Abbas and Egyptian President Abdel Fattah El-Sisi after leaving Israel. (Updates with background on Israel’s war cabinet in penultimate paragraph)Most Read from Bloomberg Businessweek©2023 Bloomberg L.P.