The 5-4 majority decision, which fell along ideological lines, said that by making state-backed private school scholarships off-limits to parochial schools, the program ran afoul of First Amendment protections for the free exercise of religion, which prohibits the government from treating religious and secular groups differently.
“A state need not subsidize private education,” Chief Justice John Robertswrote for the majority. “But once a state decides to do so, it cannot disqualify some private schools solely because they are religious.” Continue reading.