Add to that whatever is done to undermine Obamacare and Medicaid, and one set of dominos is lining up and poised to fall. A possible doctor shortage in the regions that elected Trump is only the start. Since taking office, a mixture of Trump’s executive orders, new proposed legislation in Congress and directives by just-installed agency heads—the first in a coming wave of appointees—is taking aim to destroy a swath of policies adopted to enhance public health, protect the environment and help ordinary Americans by curbing corporate greed.