2. Permanent extension of reduction in medical expense deduction floor (a) Reduction— ⋯ (1) In general— Section 213(a) of the Internal Revenue Code of 1986 is amended by striking “10 percent” and inserting “7.5 percent”. ⋯ (2) Conforming amendment— Section 213 of such Code is amended by striking subsection (f). ⋯ (b) Repeal of minimum tax preference— Section 56(b)(1) of the Internal Revenue Code of 1986 is amended by striking subparagraph (B). ⋯ (c) Effective date— The amendments made by this section shall apply to taxable years beginning after December 31, 2018. ⋯