Blaine Saito writes that the end to the Chevron deference doctrine could lead to a return to the National Muffler standard that grants judicial deference to long-standing agency rules and rules promulgated contemporaneously with Congressional statute. This may mean that the courts overturn newer taxation rules, though the Internal Revenue Code provides explicit discretionary rulemaking power to the Treasury and Internal Revenue Service, which should further limit Loper Bright’s impact on th...