Missouri voters on Tuesday approved an expansion of Medicaid eligibility under the Affordable Care Act, a change that is expected to benefit about 230,000 low-income residents.It is the sixth Republican-led state to approve the Obama-era measure, with 53% of the vote. The results come just weeks after Oklahoma narrowly passed the program, underscoring the effects the coronavirus pandemic and unemployment crisis has had on traditionally Republican states.The ballot measure adds Medicaid expansion into the state’s constitution, effectively preventing opponents of the bill to add restrictions to …