Not that congress or the DOJ would do a single thing about this, but here are the well defined consequences for perjury in front of congress... https://www.congress.gov/crs-product/98-807

Section 1001(a) states: "[I.] Except as otherwise provided in this section, [II.] whoever [III.] in any matter within the jurisdiction of the executive, legislative, or judicial branch of the Government of the United States, [IV.] knowingly and willfully— [i] falsifies, conceals, or covers up by any trick, scheme, or device a material fact; [ii.] makes any materially false, fictitious, or fraudulent statement or representation; or [iii.] makes or uses any false writing or document knowing the same to contain any materially false, fictitious, or fraudulent statement or entry; [V.] shall be fined under this title, imprisoned not more than 5 years or, if the offense involves international or domestic terrorism (as defined in section 2331), imprisoned not more than 8 years, or both. If the matter relates to an offense under chapter 109A [sexual abuse], 109B [sex offender registration], 110 [sexual exploitation], or 117 [transportation for illicit sexual purposes], or section 1591 [sex trafficking], then the term of imprisonment imposed under this section shall be not more than 8 years."