From TPM, a full collection of statements on Byrd's passing:
You can read statements on Byrd's service by President Obama and Vice President Biden.
A statement from Secretary of State Hillary Clinton can be downloaded here.
House Speaker Nancy Pelosi's (D-CA) floor statement and press release are available.
Statement from Senators Daniel Akaka (D-HI), Lamar Alexander (R-TN), Michael Bennet (D-CO), Bob Bennett (R-UT), Kit Bond (R-MO), Barbara Boxer, Scott Brown (R-MA), Sherrod Brown (D-OH), Roland Burris (D-IL), Maria Cantwell (D-WA), Benjamin Cardin (D-MD), Tom Carper (D-DE), Robert Casey (D-PA), Thad Cochran (R-MS), Susan Collins (R-ME), Kent Conrad (D-ND), Bob Corker (R-TN), John Cornyn (R-TX), Mike Crapo (R-ID), Chris Dodd (D-CT), Byron Dorgan (D-ND), Dick Durbin (D-IL), John Ensign (R-NV), Russ Feingold (D-WI), Dianne Feinstein (D-CA), Al Franken (D-MN), Judd Gregg (R-NH), Kay Hagan (D-NC), Tom Harkin (D-IA), Orrin Hatch (R-UT), Kay Bailey Hutchison (R-TX), James Inhofe (R-OK), Dan Inouye (D-HI), Mike Johanns (R-NE), Tim Johnson (D-SD), Ted Kaufman (D-DE), John Kerry (D-MA), Amy Klobuchar (D-MN), Herb Kohl (D-WI), Mary Landrieu (D-LA), Patrick Leahy (D-VT), George LeMieux (R-FL), Carl Levin (D-MI), Joseph Lieberman (I-CT), Blanche Lincoln (D-AR), Richard Lugar (R-IN), Mitch McConnell (R-KY), Jeff Merkley (D-OR), Barbara Mikulski (D-MD), Lisa Murkowski (R-AK), Patty Murray (D-WA), Ben Nelson (D-NE), Mark Pryor (D-AR), Senate Majority Leader Harry Reid (D-NV), Jay Rockefeller (D-WV) and his wife, Sharon, Jeanne Shaheen (D-NH), Olympia Snowe (R-ME), Arlen Specter (D-PA), Debbie Stabenow (D-MI), Mark Udall (D-CO), George Voinovich (R-OH) and Sheldon Whitehouse (D-RI) are also available by clicking on the relevant name
The statement from Oklahoma Republican Jim Inhofe is particularly good. In part:
As leaders from the entire political spectrum begin to mourn his death today, I remember the first time I had a personal relationship with him in 1994, the day he swore me in to the United States Senate on my 60th birthday. Later that day, I went to the floor to attack Senator Wendell Ford (D-KY). Following my scathing remarks, Senator Byrd pulled me aside and said ‘Young man' – keep in mind that was my 60th birthday- 'I like your spunk but this is the Senate where we do things differently then they do in the House of Representatives.’ From there, Byrd continued to explain the collegiality of the U.S. Senate. I appreciated this kindly advice on how to succeed in the Senate. Since then, I have cherished my friendship with Senator Byrd.