; or (B) any separate segregated fund established under the provisions of section 316(b). . (b) Definition Section 301 of such Act ( 52 U.S.C. 30101 ) is amended by adding at the end the following new paragraph: (27) Major purpose of nominating or electing a candidate The term major purpose of nominating or electing a candidate means, with respect to a group of persons described in paragraph (4)(A)— (A) a group whose central organizational purpose is to expressly advocate for the nomination, election, or defeat of a candidate; or (B) a group for which the majority of its spending throughout its lifetime of existence has been on contributions, expenditures, or independent expenditures. . (c) Price index adjustment for political committee threshold Section 315(c) of such Act ( 52 U.S.C. 30116(c) ), as amended by section 304(b), is amended— (1) in paragraph (1), by adding at the end the following new subparagraph: (E) In any calendar year after 2024— (i) a threshold established by sections 301(4)(A) or 301(4)(C) shall be increased by the percent difference determined under subparagraph (A); (ii) each amount so increased shall remain in effect for the calendar year; and (iii) if any amount after adjustment under clause (i) is not a multiple of $100, such amount shall be rounded to the nearest multiple of $100. ; and (2) in paragraph (2)(B)— (A) in clause (ii), by striking and at the end; (B) in clause (iii), by striking the period at the end and inserting ; and