President Donald Trump participates in an event in the Oval Office on Monday, Sept. 30, the same day he signed the Autism CARES Act. (Shealah Craighead/The White House/Flickr)

President Trump on Monday signed a reauthorization of the Autism Collaboration, Accountability, Research, Education and Support (CARES) Act into law, narrowly avoiding a dangerous funding lapse for the research and professional training programs it finances. The existing Autism CARES Act is now in effect until 2024.