Biden looks to chip away at supply chain snarls as midterms loom

Empty store shelves may no longer be threatening to ruin Christmas, but President Joe Biden faces a long slog before the nation’s supply chains are truly unstuck.

The administration will push in the coming months for more segments of the supply chain to operate around the clock and for companies to exchange data that exposes bottlenecks, hoping a series of modest improvements will help prevent future logjams, said John Porcari, who was tapped in August to serve as the administration’s temporary port envoy.

“One of the challenges we need to...