Getty Images/Christopher Furlong After a year in which President Donald Trump devoted much of his health policy attention to the repeal and replace of the Affordable Care Act, Trump used part of his recent State of the Union address to press Congress to focus attention in 2018 on a new health priority — the passage of "right to try" legislation. Right to try legislation gives terminally ill patients the right to use experimental medications that have not yet been approved by the Food and Drug Administration.