The United States and its allies need each other more than ever. That’s the overarching message U.S. National Security Advisor Jake Sullivan sought to convey to an audience in Washington—and beyond—in one of his final public addresses in his current role just two weeks before the U.S. presidential election.

Speaking at the Brookings Institution on Wednesday, Sullivan defended what he referred to—more than half a dozen times in his roughly 30-minute speech—as the “positive sum” approach to industrial policy and global technology supply chains that the Biden administration has put in place over the last four years.

The United States and its allies need each other more than ever. That’s the overarching message U.S. National Security Advisor Jake Sullivan sought to convey to an audience in Washington—and beyond—in one of his final public addresses in his current role just two weeks before the U.S. presidential election.

Speaking at the Brookings Institution on Wednesday, Sullivan defended what he referred to—more than half a dozen times in his roughly 30-minute speech—as the “positive sum” approach to industrial policy and global technology supply chains that the Biden administration has put in place over the last four years.

And while those policies have primarily targeted China and its technology sector, Sullivan’s emphasis was more on the collective of U.S. allies and partners that the Biden administration sees itself as successfully reinvigorating. “President Biden implemented a modern industrial strategy premised on investing at home in ourselves, in our national strength, and on shifting the energies of U.S. foreign policy to help our partners around the world do the same,” Sullivan said.

He also attempted to draw a distinction between the more isolationist “America First” approach of Biden’s predecessor Donald Trump—who is bidding for a second term in office on Nov. 5—and the Biden administration’s curbs on Chinese technology, such as export controls and tariffs. “Does our new approach mean that we’re walking away from a positive-sum view of the world? That America is just in it for itself at the expense of everyone else? In a........

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