1. Short title This Act may be cited as the Crack Down on Dark Money Act . 2. Limitation on covered political expenditures by social welfare organizations (a) In general Section 501(c)(4) of the Internal Revenue Code of 1986 is amended by adding at the end the following: (C) (i) Subparagraph (A) shall not apply to an entity for a taxable year if more than 10 percent of the total expenditures for the taxable year are covered political expenditures. (ii) For purposes of this subparagraph, the term covered political expenditures means direct or indirect expenditures for an exempt function described in section 527(e)(2). (iii) The Secretary shall prescribe such regulations as may be necessary or appropriate to prevent the avoidance of clause (i), including regulations relating to a direct or indirect transfer of all or part of the assets of an entity to an entity controlled (directly or indirectly) by the same person or persons who control the transferor entity. . (b) Expansion of political organization definition Section 527(e)(1) of such Code is amended by striking organized and operated primarily for the purpose of and inserting , unless such organization is not established under this section, . (c) Political intervention added to exempt function definition Section 527(e) of such Code is amended— (1) in paragraph (2)— (A) by striking includes the making of expenditures relating to an office described in the preceding sentence which, if incurred by the individual, would be allowable as a deduction under section 162(a). and inserting includes— (A) the making of expenditures relating to an office described in the preceding sentence which, if incurred by the individual, would be allowable as a deduction under section 162(a), and (B) political intervention. , and (B) by adding at the end the following new paragraph: (6) Political intervention The term political intervention has the meaning given to such term by section 4956. . (d) Effective date The amendments made by this section shall apply to contributions made in