Voting Rights Act of 1965 with referenced Sec 201 (26 oage pdf)
http://library.clerk.house.gov/reference-files/PPL_VotingRightsAct_1965.pdf
For current codified Voting and Election statutes, those are under 52 USC and the original law Sec 201 is 52 USC Sec 10101.
https://uscode.house.gov/view.xhtml?path=/prelim@title52/subtitle1/chapter101&edition=prelim