Kentucky case may lead to state tax parity for 529 plans
If tax "parity" is forced on the states in issuing municipal bonds, it's natural to think that the same could happen with respect to 529 plan deductions, and that any state offering such a deduction would have to open it up to residents investing in out-of-state 529 plans.
For a detailed analysis of how this case relates to the section 529 state parity issue, see this Public Finance Advisory by Len Weiser-Varon Esq. of the Mintz Levin law firm.