Commentary Washington has explained the entire inflation through supply chain problems. It’s why Federal Reserve (Fed) Chairman Jerome Powell initially described the pressure as “transitory.” Though he has withdrawn that descriptor, he continues to speak in terms of supply matters—so does President Joe Biden. The inflation probably has other causes as well, but even in the context of supply chain matters, the administration seems loath to deal with their most significant aspect—the severe shortage of workers. It’s strange, indeed, that the administration has focused instead on peripheral matters, such as inefficiencies at the Port of Long Beach and the practices of the nation’s meat packers. Stranger still, the worker shortage is where the White House could make the biggest difference. Labor Department figures make the extent of the problem plain. The nation’s civilian labor force peaked in December 2019 at 164.6 million either at work or actively seeking it. After …