; and (2) by adding at the end the following new subsection: (c) Return and transfer of certain funds (1) Deadline for obligation and expenditure In the case of any amounts appropriated pursuant to the authority of subsection (a) for a payment to a State or unit of local government for fiscal year 2020 or any succeeding fiscal year, any portion of such amounts which have not been obligated or expended by the State or unit of local government prior to the expiration of the 4-year period which begins on the date the State or unit of local government first received the amounts shall be transferred to the Commission. (2) Reallocation of transferred amounts (A) In general The Commission shall use the amounts transferred under paragraph (1) to make payments on a pro rata basis to each covered payment recipient described in subparagraph (B), which may obligate and expend such payment for the purposes described in section 261(b) during the 1-year period which begins on the date of receipt. (B) Covered payment recipients described In subparagraph (A), a covered payment recipient is a State or unit of local government with respect to which— (i) amounts were appropriated pursuant to the authority of subsection (a); and (ii) no amounts were transferred to the Commission under paragraph (1). . D Prohibiting Voter Caging 8301. Voter caging and other questionable challenges prohibited (a) In General Chapter 29 of title 18, United States Code, as amended by section 8141(a), is amended by adding at the end the following: 613. Voter caging and other questionable challenges (a) Definitions In this section— (1) the term voter caging document means— (A) a nonforwardable document that is returned to the sender or a third party as undelivered or undeliverable despite an attempt to deliver such document to the address of a registered voter or applicant