President Donald Trump has an opportunity to do what Congress should be doing, but isn’t: Help Americans who are on food stamps transition to work.The farm bill—which reauthorizes the foods stamp program for five years—would have been a prime opportunity for Congress to enhance work requirements. Under current law, certain work-capable adults must work 20 or more hours per week, participate in a supervised job search or training, or volunteer in their communities in order to receive food stamps.Most food stamp recipients are exempt from these requirements. These include people over 50 years old, the disabled, and minor children and...