This is an archived article that was published on sltrib.com in 2017, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Chicago • As Republicans try to unite around a replacement for the Affordable Care Act, one of the most popular parts of the law will be among the most difficult to replace: the guarantee of health coverage for people with pre-existing conditions.

Under the health care law, insurance companies are required to cover people with serious medical problems. President Donald Trump has said he wants to "keep pre-existing conditions" but has not said how he would do it.

Some Republicans favor state-based solutions, including high-risk pools, where people without other options can turn for coverage. More than 30 states ran high-risk pools in 2011 before the law took full effect, but they had net losses of more than $1.2 billion.