"In response to unsuccessful efforts in Congress to repeal and replace the Affordable Care Act, this morning President Trump signed a wide-ranging Executive Order: Promoting Health Care Choice and Competition Across the United States. The broad measure seeks to expand access to lower-cost, less comprehensive private insurance, allow employers to give employees money to buy individual coverage and slow consolidation of health plans and hospitals. To accomplish these things, the Order directs the Departments of Treasury, Labor and Health and Human Services to work together to revise regulations and guidance in a number of areas. As such, this signals the beginning of a regulatory policy-making process that will unfold over the coming weeks and months. The specific timeline for implementation of new policies and the impact on insurance markets for 2018 is unclear. The White House's summary of the Executive Order, talking points and frequently asked questions is available here.
Summaries and analysis from other sources are just now becoming available. A few worth noting include:
Trump's Order Advances GOP Go-To Ideas to Broaden Insurance Choices, Curb Costs, Julie Appleby, Kaiser Health News
Trump Executive Order Expands Opportunities for Healthier People to Exit ACA, Timothy Jost for Health Affairs Blog
Additionally, organizations are beginning to release statements in response. I have compiled a few from key organizations here for your review.