Breaking: Federal Court Holds IRS Violated Administrative Procedure Act with Rule that Exempted 501(c)(4) Political (and Other) Organizations from Filing Their List of Donors With the IRS July 30, 2019, 6:34 pmcampaign finance, tax law and election lawRick Hasen The court ruled that if the IRS wants to enforce such a rule, it has to go through the notice and comment period. Share this: