Supreme Court boosts efforts to limit federal agency power.

The U.S. Supreme Court has made it easier to challenge the regulatory power of federal agencies in two important rulings backing Axon Enterprise Inc's bid to sue the Federal Trade Commission and a Texas accountant's gripe with the Securities and Exchange Commission. The court revived Axon's lawsuit contesting the constitutionality of the FTC's structure in a bid to counter an antitrust action related to the company's acquisition of a rival, overturning a lower court's decision to dismiss the case. The justices also unanimously upheld a lower court's decision allowing the accountant, Michelle Cochran, to sue the SEC, challenging the legality of its in-house judges, after the agency faulted her audits of publicly traded companies.