When major companies declared that a provision of the new healthcare law would hurt earnings, Democrats were skeptical, the New York Times reports. But after investigating, House Democrats have concluded that the companies were right to tell investors and the government about the expected adverse effects of the law on their financial results. At issue is a section of the law that eliminates a tax break available to companies that provide drug benefits to retirees as part of their insurance coverage. The tax change, expected to generate $4.5 billion of revenue over the next 10 years, will help offset the cost of providing coverage to the uninsured, reports the Times.