Finally, another issue that the Supreme Court could be asked to weigh in on would be the increasing consolidation among health care stakeholders. Last year, four of the largest insurers tried, and failed, to merge into two. This year, CVS has proposed merging with Aetna, Amazon has acquired PillPack, and Walmart is seeking to combine with Humana. This so called “vertical integration” raises questions about monopolies, competition and health-care pricing. It is likely that at some point courts will weigh in.