In a phone call yesterday with Israeli PM Benjamin Netanyahu, PresidentJoe Biden made two central demands: First, to allow the flow ofhumanitarian aid; second, to empower negotiators to broker a cease-fireand hostage deal. If that sounds like a marked change in Biden’sposture, it is: The killings this week of seven aid workers with WorldCentral Kitchen seems to have fundamentally shifted the calculus at playfor the U.S. in Gaza. National security reporter Alex Ward joinsPlaybook co-author Ryan Lizza to break it all down.

Playbook co-author Ryan Lizza interviews National security reporter AlexWard.