After receiving Sen. Bernie Sanders’s endorsement, presumptive Democratic nominee Joe Biden invited the Vermont progressive into a policy dialogue, setting up six joint task forces — all on domestic issues — to find common ground. Nothing similar has been announced on foreign policy, but Matt Duss, Sanders’s foreign policy adviser, reported that Biden’s advisers “want to be engaged in the conversation to make the platform stronger.” If so, there are several critical initiatives that Biden should embrace.

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