Endorsements by U.S. Senators
Dates indicate when endorsement announced.
 
Bush (41) (as of 3/8/00)
Spencer Abraham (MI)   10/21/99 (fmrly Quayle)
Wayne Allard (CO)   4/19/99
John Ashcroft (MO)    1/12/00
Robert Bennett (UT)   1/26/00 (backed Hatch until his withdrawal)
Kit Bond (MO)   6/10/99
Sam Brownback (KS)   1/21/00
Ben Nighthorse Campbell (CO)   4/19/99
Lincoln Chafee (RI)1   11/29/99
Susan Collins (ME)   3/15/99
Thad Cochran (MS)  10/14/99
Paul Coverdell (GA)   3/7/99
Larry Craig (ID)    11/12/99
Mike Crapo (ID)    3/6/00
Pete Domenici (NM)   6/8/99
William Frist (TN)   12/16/99 (fmrly Alexander)
Slade Gorton (WA)   7/8/99
Phil Gramm (TX) 
Rod Grams (MN)   7/20/99
Chuck Grassley (IA)   1/4/00
Judd Gregg (NH)   4/8/99
Orrin Hatch (UT)   1/26/00 (withdrew and endorsed Bush)
Tim Hutchinson (AR)   6/11/99
Kay Bailey Hutchison (TX)
James Inhofe (OK)   2/7/00
James Jeffords (VT)   10/11/99
Richard Lugar (IN)   11/19/99
Connie Mack (FL)    1/12/00
Mitch McConnell (KY)   7/2/99
Frank Murkowski (AK)   6/18/99
Pat Roberts (KS)   10/14/99
William Roth (DE)   2/7/00
Rick Santorum (PA)   11/29/99
Jeff Sessions (AL)   10/28/99
Richard Shelby (AL)   10/28/99
Gordon Smith (OR)   6/16/99
Olympia Snowe (ME)   3/15/99
Ted Stevens (AK)
Craig Thomas (WY)    3/3/00
Strom Thurmond (SC)   5/25/99
George Voinovich (OH)    11/9/99
John Warner (VA)    1/28/00
1. Lincoln Chafee replaced his father, John Chafee, who died 10/26/99.  The senior Chafee had also endorsed Bush.

McCain (4)
John Kyl (AZ)
Chuck Hagel (NE)   3/15/99
Fred Thompson (TN)   8/18/99 (fmrly Alexander)
Mike DeWine (OH)   9/3/99

Running for President (1)
John McCain (AZ)
 

No Endorsement Yet (9)
Jim Bunning (KY)
Conrad Burns (MT)
Mike Enzi (WY)
Peter Fitzgerald (IL)
Jesse Helms (NC)
Trent Lott (MS)
Don Nickles (OK)
Arlen Specter (PA)
Bob Smith (NH) ended presidential bid 10/28/99

Notes:
Before he withdrew, Dan Quayle had the backing of Sen. Spencer Abraham (MI).
Before he withdrew, Lamar Alexander had the backing of Sens. Bill Frist (TN) and Fred Thompson (TN).
At the time of the Iowa Caucuses, Jan. 24, 2000, Bush already had the backing of 33 U.S. Senators.
 

 Gore (30) (as of 2/25/00)
Daniel Akaka (HI)   9/27/99
Evan Bayh (IN)   7/31/99
Max Baucus (MT)   1/25/00
Joseph Biden Jr. (DE)   2/25/00
Barbara Boxer (CA)   9/15/99
Richard Bryan (NV)
Max Cleland (GA)   5/24/99
Tom Daschle (SD)   3/22/99
Byron Dorgan (ND)
Christopher Dodd (CT)   9/27/99
John Edwards (NC)   2/16/00
Dianne Feinstein (CA)  9/15/99
Tom Harkin (IA)   9/6/99
Daniel Inouye (HI)   9/27/99
Tim Johnson (SD)   3/22/99
Edward Kennedy (MA)   1/5/00
John Kerry (MA)   11/20/99
Frank Lautenberg (NJ)   12/17/99--known  months earlier
Patrick Leahy (VT)   1/28/00
Joseph Lieberman (CT)   9/10/99
Blanch Lambert Lincoln (AR)   8/7/99
Barbara Mikulski (MD)   7/28/99
Patty Murray (WA)   6/18/99
Jack Reed (RI)   9/10/99
Harry Reid (NV)
Charles Robb (VA)
John Rockefeller IV (WV)   2/19/00
Charles Schumer (NY)   2/14/00
Paul Sarbanes (MD)   7/28/99
Ron Wyden (OR)   9/15/99

Bradley (3)
Paul Wellstone (MN)   4/24/99
John Kerrey (NE)   7/5/99
Daniel Patrick Moynihan (NY)   9/23/99
 

No Endorsement Yet (12)
Jeff Bingaman (NM)   "plans to support the Democratic nominee whoever that may be"
John Breaux (LA)
Robert Byrd (WV)   "generally he doesn't endorse in primaries"
Kent Conrad (ND)
Richard Durbin (IL)
Russell Feingold (WI)
Bob Graham (FL)
Ernest Hollings (SC)
Herbert Kohl (WI)
Mary Landrieu (LA)
Carl Levin (MI)   likely to endorse before March 11 MI Dem. primary
Robert Torricelli (NJ)
 
Republicans (55) Democrats (45)
Spencer Abraham (MI)
Wayne Allard (CO)
John Ashcroft (MO)
Robert Bennett (UT)
Christopher Bond (MO)
Sam Brownback (KS)
Jim Bunning (KY)
Conrad Burns (MT)
Ben Nighthorse Campbell (CO)
Lincoln Chafee (RI)   John Chafee died 10/26/99
Thad Cochran (MS)
Susan Collins (ME)
Paul Coverdell (GA)
Larry Craig (ID)
Mike Crapo (ID)
Mike DeWine (OH)
Pete Domenici (NM)
Mike Enzi (WY)
Peter Fitzgerald (IL)
William Frist (TN)
Slade Gorton (WA)
Phil Gramm (TX)
Rod Grams (MN)
Chuck Grassley (IA)
Judd Gregg (NH)
Charles Hagel (NE)
Orrin Hatch (UT)
Jesse Helms (NC)
Tim Hutchinson (AR)
Kay Bailey Hutchison (TX)
James Inhofe (OK)
James Jeffords (VT)
John Kyl (AZ)
Trent Lott (MS)
Richard Lugar (IN)
Connie Mack (FL)
John McCain (AZ)
Mitch McConnell (KY)
Frank Murkowski (AK)
Don Nickles (OK)
Pat Roberts (KS)
William Roth (DE)
Rick Santorum (PA)
Jeff Sessions (AL)
Richard Shelby (AL)
Bob Smith (NH)
Gordon Smith (OR)
Olympia Snowe (ME)
Arlen Specter (PA)
Ted Stevens (AK)
Craig Thomas (WY)
Fred Thompson (TN)
Strom Thurmond (SC)
George Voinovich (OH)
John Warner (VA)

 

 Daniel Akaka (HI)
Max Baucus (MT)
Evan Bayh (IN)
Joseph Biden Jr. (DE)
Jeff Bingaman (NM)
Barbara Boxer (CA)
John Breaux (LA)
Richard Bryan (NV)
Robert Byrd (WV)
Max Cleland (GA)
Kent Conrad (ND)
Thomas Daschle (SD)
Christopher Dodd (CT)
Byron Dorgan (ND)
Richard Durbin (IL)
John Edwards (NC)
Russell Feingold (WI)
Dianne Feinstein (CA)
Bob Graham (FL)
Tom Harkin (IA)
Ernest Hollings (SC)
Daniel Inouye (HI)
Tim Johnson (SD)
Edward Kennedy (MA)
Robert Kerrey (NE)
John Kerry (MA)
Herb Kohl (WI)
Mary Landrieu (LA)
Frank Lautenberg (NJ)
Patrick Leahy (VT)
Carl Levin (MI)
Joseph Lieberman (CT)
Blanche Lincoln (AR)
Barbara Mikulski (MD)
Daniel Moynihan (NY)
Patty Murray (WA)
Jack Reed (RI)
Harry Reid (NV)
Charles Robb (VA)
John Rockefeller IV (WV)
Paul Sarbanes (MD)
Charles Schumer (NY)
Robert Torricelli (NJ)
Paul Wellstone (WI)
Ron Wyden (OR)