; and (5) in subsection (g), by striking subsection (e) or (f) of this section and inserting subsection (d) or (f) . (g) Injunctions against unfair labor practices involving discharge or other serious economic loss Section 10(j) of the National Labor Relations Act ( 29 U.S.C. 160(j) ) is amended— (1) by striking (j) The Board and inserting the following: (A) (j)(1) The Board ; and (B) by adding at the end the following: (2) Notwithstanding subsection (m), whenever it is charged that an employer has engaged in an unfair labor practice within the meaning of paragraph (1) or (3) of section 8(a) that significantly interferes with, restrains, or coerces employees in the exercise of the rights guaranteed under section 7, or involves discharge or other serious economic harm to an employee, the preliminary investigation of such charge shall be made forthwith and given priority over all other cases except cases of like character in the office where it is filed or to which it is referred. If, after such investigation, the officer or regional attorney to whom the matter may be referred has reasonable cause to believe such charge is true and that a complaint should issue, such officer or attorney shall bring a petition for appropriate temporary relief or restraining order as set forth in paragraph (1). The district court shall grant the relief requested unless the court concludes that there is no reasonable likelihood that the Board will succeed on the merits of the Board’s claim. ; and (C) by repealing subsections (k) and (l). (h) Penalties (1) In general Section 12 of the National Labor Relations Act ( 29 U.S.C. 162 ) is amended— (A) by striking Sec. 12. Any person and inserting the following: 12. Penalties (a) Violations for interference with board Any person