WASHINGTON — In a 6-3 ruling June 21, the U.S. Supreme Court said a Maine tuition aid program that excluded religious schools violated the Constitution’s free exercise clause.

The opinion, written by Chief Justice John Roberts, said: “A state need not subsidize private education but once a state decides to do so, it cannot disqualify some private schools solely because they are religious.”

He also said the court’s decision in Carson v. Makin stemmed from a principle in its two previous decisions, particularly the 2020 opinion in Espinoza v. Montana Department of Revenue. In that case, the court said the state of Montana could not exclude religious schools from receiving tax credit-funded scholarships under its school choice program.

The Maine case went a step further by asking if the state can prevent students from using state funds to attend schools that provide religious instruction.

Roberts stressed that a neutral benefit program that gives public funds to religious organizations through the independent choices of the recipients of those benefits does not violate the Constitution’s establishment clause.

During oral arguments last December on this case, several of the justices found fault with the state’s decision process in determining just how religious a school was in order to decide if the school could participate or not in the program specifically for rural communities.

Schools deemed as ones that could potentially “infuse” religion in classes were excluded while other schools deemed by the state’s board of education to be the “rough equivalent” of public schools — or religiously neutral — could take part in the tuition program.

“That’s discrimination based on doctrine. That’s unconstitutional,” Roberts said at the time, which he essentially reiterated in his opinion.

Justice Stephen Breyer, in his dissent, stressed that the court has “never previously held” what it is saying today, “namely, that a state must (not may) use state funds to pay for religious education as part of a tuition program designed to ensure the provision of free statewide public education.”

Breyer, joined by Justice Elena Kagan and in part by Justice Sonia Sotomayor, said this decision pays more attention to the free exercise clause and not enough to the Constitution’s Establishment Clause.

Cardinal Timothy M. Dolan of New York, chairman of the U.S. Conference of Catholic Bishops’ Committee for Religious Liberty, and Bishop Thomas A. Daly of Spokane, Washington, chairman of the USCCB’s Committee on Catholic Education, said the high court “rightly ruled that the Constitution protects not just the right to be religious but also to act religious.”

“This commonsense result reflects the essence of Catholic education,” they said.

“The court has again affirmed that states cannot exclude religious schools from generally available public benefits based on their religious affiliation or exercise,” the USCCB chairmen added. “In our pluralistic society, it is vital that all people of faith be able to participate in publicly available programs and so to contribute to the common good.”

Nichole Garnett, a law professor at Notre Dame Law School, who focuses on education policy, called the decision “a victory both for religious liberty and for American schoolchildren.”

“The majority makes clear, once again, that, when the government makes a benefit available to private institutions, it must treat religious institutions — including faith-based schools — fairly and equitably,” she said in June 21 statement.

She also noted that the opinion cements the constitutional principle that “requires government neutrality — and prohibits hostility — toward religious believers and institutions.”

Garnett signed an amicus brief in the Maine case submitted by the Religious Liberty Initiative of Notre Dame Law School on behalf of elementary and secondary schools from three faith traditions — Catholic (Partnership for Inner-City Education), Islamic (Council of Islamic Schools in North America) and Jewish (National Council of Young Israel).

Noting how this decision could impact school choice programs, she said it “clears away a major hurdle to the expansion of parental choice in the U.S. by clarifying that, when states adopt choice programs, they must permit parents to choose faith-based schools for their children.”

“Faith-based schools have a long and proven track record of providing high-quality education, especially for our most disadvantaged children and policies that exclude them from private-school choice programs are both unconstitutional and unwise,” she added.