Nine Louisiana families have filed a federal lawsuit against a new law mandating the display of the Ten Commandments in public school classrooms.

The lawsuit, supported by civil liberties groups and a pro bono law firm, argues that the law violates First Amendment rights and promotes religious favoritism.

Governor Jeff Landry, with the backing of Donald Trump, plans to defend the legislation against legal challenges.

Critics see the law as part of a larger trend of pushing Christian values in public schools and violating the separation of church and state.

The case is anticipated to be a contentious legal battle that could potentially reach the Supreme Court, sparking controversy in the conservative-leaning state under new leadership.