Only since the 14th Amendment.
Like your misconceptions about the 1st, you misunderstand the 14th.
Article VI clearly says that ALL State officials must support the Constitution as the supreme Law of the Land.
-- The 14th reiterated that fact to a bunch of good ole boys who refused to admit the 2nd applied to ex slaves.
Well, I do come here to learn! Why do so many state constitutions contain redundant bills of rights?