The Supreme Court’s conservative majority on Wednesday seemed open to backing the creation of a Catholic charter school in Oklahoma, a decision that would expand the availability of taxpayer money for religious education in school systems across the nation.

Chief Justice John Roberts may cast the deciding vote in a Supreme Court case over Oklahoma's proposed religious charter school.

The Oklahoma Supreme Court ruled that publicly funding the St. Isidore of Seville Catholic Virtual School would entangle church and state in violation of the First Amendment.