well, subject very much to be continued, ambassador jeffrey and wendy sherman. thank you. >> thank you. >> thank you. >> woodruff: stay with us, coming up on the newshour, a woman's mission to help girls in liberia. and a letter to five presidents who owned slaves. but first, can the healthcare law be replaced and work without a mandate? that's something the president and congressional republicans seem to be trying to do, although just how is not clear yet. as the annual enrollment season for buying insurance has come to a close, there are very real questions about how this all would play out once the law is changed. our economics correspondent, paul solman, went to kentucky to explore that further, part of his weekly series, "making sense." >> folks, folks, we want to end obamacare, we want to go to a plan that is so much better and so much less expensive, right? >> reporter: throughout the campaign, donald trump promised to repeal and replace the affordable care act. >> so help me god. >> reporter: and sure enough, on inauguration day, he signed his first exec