After several states tried unsuccessfully over the years, Louisiana has become the first to require all public schools at every level to display the Ten Commandments in every classroom. Starting next year, the displays must be poster-sized and show the commandments in "large, easily readable font".
As you might guess, it's already controversial.

"On its face, it is certainly contrary to Supreme Court precedent," says 21 News legal analyst and Constitutional law expert Matt Mangino. "But as we know, precedent isn't what it used to be."

That precedent dates back to 1980.
Kentucky passed a similar law, but the nation's high court ruled that it violated the portion of The Constitution that prohibits the establishment of religion.
But now, with a 6-3 conservative majority, Mangino believes the law is a litmus test.

"I have no doubt that the governor and the legislature in Louisiana want nothing more than for this case to end up at the Supreme Court," he said. "They want it to be challenged, they want to hear from the Supreme Court.

The Supreme Court already decided the Commandments are religious, not secular.
But supporters of the Louisiana law argue historical significance.
They call the Commandments "foundational documents of our state and national government".

"I don't buy that at all and in fact I would say unequivocally that that's dead wrong," Mangino said.

The ACLU has already filed suit.