TL;DR: Bryan Fischer has never read the 14th Amendment, which extends the First Amendment to state and local governments as well.
Of course, the 14th Amendment wasn't part of what Bryan specifically calls out, multiple times, as "the Founder's Constitution," back before it got all cluttered up with nonsense like slavery bans, equal protection folderol, voting for women, direct election of Senators, applying US Constitutional Rights to the states, and other ungodly bits.
I do agree that on one level it's inappropriate to zing a school district for having a minister pray at an assembly while Congress gets to have prayerful invocations from its chaplain. On the other hand, one could argue that the any given congresscritter has the power to protest such a procedure and vote to overturn it, which a student can't do in a school setting. SCOTUS has, I believe, also referenced the congressional invocations as "ceremonial deism," something I suspect would prefer not to think of the school prayer as being.
(Calling the school a "voluntary" event, as Brian keeps doing, to try to wangle out of the idea that this was pressuring kids to attend a meeting where official praying would be going on, is a bit misleading: it's only "voluntary" if you don't want to be publicly honored for a high ACT score. The district was already under a 2013 injunction against school proselytizing.)
And, of course, calling this ruling unconstitutional because it's interfering with the minister's right to pray is silly. The minister can pray all he want. But the school district can't arrange for him to be there and provide him time and space to pray over (and "let us pray" with) the gathering and students involved.
Somehow I doubt Brian would be so outraged over this court case if the school district had invited, oh, the imam from a local mosque to pray at the assembly. But, then, Brian doesn't think the First Amendment covers non-Christian religions, and he doesn't think Islam is a religion anyway, so that's hardly surprising.
Dolt.
Judge Violates Constitution, Prohibits School Prayer
Federal judge fines Mississippi school for doing the same thing Congress does.
If Fischer doesn't think Islam is a religion, then it wouldn't be breaking any rules/laws if the Iman were to "speak" (read: pray) at a school event such as this. Right?
+Brian Barth Sure it would! Because this is a Christian nation! And Obama's probably behind inviting him! And the gays! And … um … terrorists!