A bill that would expand Medicaid coverage for mothers and newborn babies is moving forward. The Republican-controlled Missouri Senate gave first-round approval Tuesday to the bill, which would provide health insurance coverage to low-income mothers and their babies for up to one year after birth. Coverage is currently limited to two months. It’s co-sponsored by Republican Elaine Gannon of Jefferson County and Democrat Tracy McCreery of St. Louis County. The bill needs one more vote by the full Senate before moving to the Missouri House.