CBS News reports [nbcnews.com]:
The Trump administration is expected to issue a proposal in coming weeks that would make it harder for legal immigrants to become citizens [nbcnews.com] or get green cards if they have ever used a range of popular public welfare programs, including Obamacare, four sources with knowledge of the plan told NBC News.
The move, which would not need congressional approval, is part of White House senior adviser Stephen Miller's plan [nbcnews.com] to limit the number of migrants who obtain legal status in the U.S. each year.