Was “Bidenomics” a failure? For many allies of former President Joe Biden, the question is sacrilege. He oversaw passage of a sweeping suite of bills that funded infrastructure projects, boosted strategic sectors, built out clean energy and helped propel the economy out of a pandemic-induced deep freeze. His electoral loss — their narrative goes — was fed by price surges largely beyond his control. But one of the most prominent economists in the Democratic Party is arguing that the answer is, at least partially, yes: that there were areas where the Biden administration failed, and they failed because they got...