Abigail Thernstrom’s testimony before the Senate Judiciary Committee is here. There have also been some interesting posts on the Election law listserv regarding renewal, including these posts by David Lublin, David Epstein, Mark Posner, Keith Gaddie (responding to Nate Persily’s guest blog post—see also this response from Nate), James Blacksher, David Becker, Lublin again, and Blacksher again.