Congress kicked off an effort to restore the Voting Rights Act of 1965 with a series of Capitol Hill hearings this week, less than a month after the U.S. Supreme Court severely weakened the law by striking down a key anti-discrimination provision.

No legislation has been proposed yet. But senators and a leading representative spoke during a Senate Judiciary Committee hearing on Wednesday about their appetite to fix the now-unconstitutional Section 4 formula, which set out when a state or local jurisdiction warrants special scrutiny before it can implement electoral changes.

Representative Jim Sensenbrenner (R-Wis.), who led the House effort to reauthorize the VRA in 2006, testified that he is committed to crafting a constitutional response to the Shelby County v. Holder decision that “will last a long time.”