This is some brazen stuff:

We will be issuing a press release shortly on @NCSBE decision to remove 3 of our candidates form the ballot after they legally filed. Expect legal action to be taken accordingly. #ncpol

— ConstitutionPartyNC (@ConstituPartyNC) June 22, 2018

I imagine Republicans did this out of fear that the Constitution Party could divide the vote on the right and help Democrats.

Can’t think of another example of a retroactive law removing qualified candidates from the ballot before.

(Some background on the law.)