WASHINGTON (AP) — The impact of the massive spending bill that President Donald Trump signed into law on Independence Day is expected to filter down to infants and toddlers — a segment of the population that is particularly vulnerable to cuts to the federal social safety net. Many middle-class and wealthy families will see benefits from the new legislation, but programs that help low-income families keep babies healthy have been cut back. While state money funds public schools and preschool in some cases, programs supporting the youngest children are largely backed by the federal government.