The issue of critical race theory was brought up during Wednesday’s Supreme Court argument when Justice Samuel Alito asked the lawyer defending the state of Maine whether the state’s tuition assistance program, which excludes Christian high schools, can also deny participation of schools promulgating beliefs that are clearly against the purpose of public education. The argument heard before the high court centered around a system that Maine uses to ensure that all children in the state have free access to K-12 education. Under the system, a public school district that doesn’t have its own secondary school may either contract with a private secondary school to send its students there, or pay the tuition of the private school of a student’s choice. In either case, the participating private school must be “nonsectarian,” meaning that it can’t provide religious instruction. The Carsons and Nelsons live in districts that do not operate a …