What science says about leucovorin, the drug Trump touted for autism

President Donald Trump’s comments about autism this week sparked widespread concern and criticism from many in the community. But there’s also some curiosity about a new use for an old drug.

​ President Donald Trump’s comments about autism this week sparked widespread concern and criticism from many in the community. But there’s also some curiosity about a new use for an old drug. Read More Breaking News, Latest News and Videos | CNN