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- Biden called for an immediate cease-fire in a call with Israeli Prime Minister Benjamin Netanyahu.
- The chat came days after Israel killed seven World Central Kitchen workers in Gaza.
- The call lasted more than 30 minutes and was described as "tense and challenging."
In a conversation with Israeli Prime Minister Benjamin Netanyahu on Thursday, President Joe Biden called for an immediate cease-fire in Gaza and said Israel needed to do more to prevent civilian deaths or risk US support of the war.