It’s the first real drop in health coverage since the Affordable Care Act took full effect in 2014.
The effort is likely to face significant pushback from the hospital industry.
But many of the ACA’s elements remain largely intact, including billions of dollars in subsidies.
UnitedHealth Group wading into the debate helped accelerate the companies' losses.
Not only are the proposals unaffordable, they would fail to expand access to health care, the executive said.
Out-of-pocket spending on health care jumps about 60 percent in the week after people get their refunds.
Insurers and care facilities may start tracking patients' social conditions to shed light on health care stressors.
The failure by Republicans to overturn the Affordable Care Act has been a sore point for the president.
Some people decided that going without expensive health insurance was worth the risk.
A federal judge called Obamacare unconstitutional, but his ruling must survive higher court review.