WASHINGTON—Senator Peter Welch (D-Vt.) and Senator Kirsten Gillibrand (D-N.Y.) today introduced the Improving Access to Nutrition Act, legislation that would help more Americans access the Supplemental Nutrition Assistance Program (SNAP), known as 3SquaresVT in Vermont. Reps. Barbara Lee (Calif.-12) and Alma Adams (N.C.-12) introduced the…