In July, the Senate voted 64-29 to reauthorize the bank as part of a highway bill.
The Voting Rights Act of 1965 has been reauthorized four times, most recently in 2006.
The Patriot Act provisions in question expire June 1 unless Congress reauthorizes them.
Congress reauthorized the current Voting Rights Act preclearance formula just seven years ago.
“We hope that Congress will find a way to reauthorize the funding in the coming months,” she said.
Congress passed the VRA in 1964, and reauthorized it several times since then, most recently in 2006.