Senate roll call 44 · 30th Congress · Mar 8, 1848
To amend the treaty by adding that there shall be neither slavery nor involuntary servitude in the territories hereby ceded, except in punishment of crimes wher
On Mar 8, 1848, the Senate voted 15–38. Result: failed. By party: Democrats 3–29, Others 12–9. 3 members voted against their own party.
During the 30th Congress (1847–1848), James K. Polk was president.
- Yes
- 15
- No
- 38
- Did not vote
- 19
- Date
- Mar 8, 1848
By party
- Democrats3 yes · 29 no · 15 didn’t vote
- Others12 yes · 9 no · 4 didn’t vote
Who broke with their party
- John Milton Niles D-CT voted yes
- Charles Gordon Atherton D-NH voted yes
- John Adams Dix D-NY voted yes
How each senator voted: Yes
- John Milton Niles D-CT
- Roger Sherman Baldwin O-CT
- John Middleton Clayton O-DE
- Presley Spruance O-DE
- John Davis O-MA
- Charles Gordon Atherton D-NH
- John Parker Hale O-NH
- Jacob Welsh Miller O-NJ
- William Lewis Dayton O-NJ
- John Adams Dix D-NY
- Thomas Corwin O-OH
- Albert Collins Greene O-RI
- John Hopkins Clarke O-RI
- Samuel Shethar Phelps O-VT
- William Upham O-VT
How each senator voted: No
- Arthur Pendleton Bagby D-AL
- Dixon Hall Lewis D-AL
- Ambrose Hundley Sevier D-AR
- Chester Ashley D-AR
- David Levy Yulee D-FL
- Herschel Vespasian Johnson D-GA
- John Macpherson Berrien O-GA
- Sidney Breese D-IL
- Stephen Arnold Douglas D-IL
- Edward Allen Hannegan D-IN
- Jesse David Bright D-IN
- John Jordan Crittenden O-KY
- Joseph Rogers Underwood O-KY
- Henry Johnson O-LA
- Solomon Weathersbee Downs D-LA
- James Alfred Pearce O-MD
- Reverdy Johnson O-MD
- James Ware Bradbury D-ME
- Wyman Bradbury Seavy Moor D-ME
- Alpheus Felch D-MI
- Lewis Cass D-MI
- David Rice Atchison D-MO
- Thomas Hart Benton D-MO
- Henry Stuart Foote D-MS
- Jefferson Davis D-MS
- George Edmund Badger O-NC
- Willie Person Mangum O-NC
- Daniel Stevens Dickinson D-NY
- William Allen D-OH
- Daniel Sturgeon D-PA
- Simon Cameron D-PA
- Andrew Pickens Butler D-SC
- John Caldwell Calhoun D-SC
- Hopkins Lacy Turney D-TN
- John Bell O-TN
- Thomas Jefferson Rusk D-TX
- James Murray Mason D-VA
- Robert Mercer Taliaferro Hunter D-VA
Did not vote
- Benjamin Fitzpatrick D-AL
- William Rufus de Vane King D-AL
- Solon Borland D-AR
- William King Sebastian D-AR
- Jabez Williams Huntington O-CT
- John Wales O-DE
- James Diament Westcott Jr. D-FL
- Walter Terry Colquitt D-GA
- Augustus Caesar Dodge D-IA
- George Wallace Jones D-IA
- Thomas Metcalfe O-KY
- Daniel Webster O-MA
- Hannibal Hamlin D-ME
- John Fairfield D-ME
- Thomas Fitzgerald D-MI
- Jesse Speight D-MS
- Samuel Houston D-TX
- Henry Dodge D-WI
- Isaac Pigeon Walker D-WI
Other votes
From Voteview roll call records.
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Capitol Receipts, “To amend the treaty by adding that there…: Senate Vote, Mar 8, 1848,” https://www.capitolreceipts.com/vote/30-S-44/to-amend-the-treaty-by-adding-that-there-shall (accessed 2026-10-16).