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Cynthia M. Lummis headshot
At a Glance
Seat
U.S. Senator from Wyoming
Born
September 10, 1954
Age 71
Phone
(202) 224-3424
Office
127A Russell Senate Office Building Washington, DC 20510, Washington 20515
Congress Member Profile|U.S. Senator|Republican|Wyoming

Cynthia M. Lummis

Cynthia Marie Lummis Wiederspahn is an American attorney and politician serving as the junior United States senator from Wyoming since 2021. A member of the Republican Party, Lummis served as the U.S. representative for Wyoming's at-large congressional district from 2009 to 2017. She served in the Wyoming House of Representatives from 1979 to 1983 and from 1985 to 1993, in the Wyoming Senate from 1993 to 1995, and as the Wyoming State Treasurer from 1999 to 2007.

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Voting Record — 776
Yes74%
No24%
Present0%
Not Voting3%
Party align98%
Cross-party0%
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District Map

Senate District (Statewide)

U.S. Census Bureau boundary data.
Social & Web
Official siteX @SenLummisFacebookInstagram
External Resources
WikipediaBallotpediaVoteSmartGovTrackOpenSecrets
Cynthia M. Lummis headshot
Cynthia M. Lummis
U.S. SenatorRepublicanWyoming
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Cynthia M.'s ATmosphere Activity
42 sponsored · 197 cosponsored

Recent ATmosphere posts, sponsorships, and cosponsorships.

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Voting History
776 total votes
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Recent roll calls with party-majority context so it is easier to scan how this member tends to vote.

DateBillQuestionPositionParty MajAlign?Result
2025-10-20H.R. 5371 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (50-43, 3/5 majority required)
2025-10-16H.R. 4016 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (50-44, 3/5 majority required)
2025-10-16—End debateYESYES✓Cloture Motion Agreed to (62-34)
2025-10-16H.R. 5371 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (51-45, 3/5 majority required)
2025-10-15H.R. 5371 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (51-44, 3/5 majority required)
2025-10-14H.R. 5371 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (49-45, 3/5 majority required)
2025-10-09S. 2296 (119th)Final passageYESYES✓Bill Passed (77-20, 3/5 majority required)
2025-10-09S. 2296 (119th)Vote on amendmentNONO✓Amendment Rejected (47-50, 3/5 majority required)
2025-10-09S. 2296 (119th)Vote on amendmentNONO✓Amendment Rejected (10-88, 3/5 majority required)
2025-10-09S. 2296 (119th)Vote on amendmentNONO✓Amendment Rejected (46-52, 3/5 majority required)
2025-10-09S. 2296 (119th)Vote on amendmentNONO✓Amendment Rejected (47-50, 3/5 majority required)
2025-10-09S. 2296 (119th)Vote on amendmentNONO✓Amendment Rejected (46-50, 3/5 majority required)
2025-10-09S. 2296 (119th)Vote on amendmentYESYES✓Amendment Rejected (51-46, 3/5 majority required)
2025-10-09S. 2296 (119th)Vote on amendmentYESYES✓Amendment Rejected (53-43, 3/5 majority required)
2025-10-09S. 2296 (119th)Vote on amendmentYESNO✕Amendment Rejected (14-83, 3/5 majority required)
2025-10-09—Confirm nomineeYESYES✓Nomination Confirmed (50-47)
2025-10-09H.J. Res. 106 (119th)Approve resolutionYESYES✓Joint Resolution Passed (50-46)
2025-10-09H.J. Res. 106 (119th)Begin considerationYESYES✓Motion to Proceed Agreed to (50-47)
2025-10-09H.R. 5371 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (54-45, 3/5 majority required)
2025-10-09S. 2882 (119th)End filibuster to begin debateNONO✓Cloture on the Motion to Proceed Rejected (47-50, 3/5 majority required)
2025-10-08H.J. Res. 105 (119th)Approve resolutionYESYES✓Joint Resolution Passed (50-45)
2025-10-08S.J. Res. 83 (119th)Motion to Discharge S.J.Res. 83NONO✓Motion to Discharge Rejected (48-51)
2025-10-08S.J. Res. 71 (119th)Approve resolutionNONO✓Joint Resolution Defeated (47-51)
2025-10-08H.J. Res. 105 (119th)Begin considerationYESYES✓Motion to Proceed Agreed to (51-47)
2025-10-08—End debateYESYES✓Cloture Motion Agreed to (50-47)
2025-10-08H.R. 5371 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (54-45, 3/5 majority required)
2025-10-08S. 2882 (119th)End filibuster to begin debateNONO✓Cloture on the Motion to Proceed Rejected (47-52, 3/5 majority required)
2025-10-08H.J. Res. 104 (119th)Approve resolutionYESYES✓Joint Resolution Passed (52-47)
2025-10-07H.J. Res. 104 (119th)Begin considerationYESYES✓Motion to Proceed Agreed to (50-47)
2025-10-07S. Res. 412 (119th)Confirm nomineeYESYES✓Nomination Confirmed (51-47)
2025-10-06S. Res. 412 (119th)End debateYESYES✓Cloture Motion Agreed to (50-45)
2025-10-06H.R. 5371 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (52-42, 3/5 majority required)
2025-10-06S. 2882 (119th)End filibuster to begin debateNONO✓Cloture on the Motion to Proceed Rejected (45-50, 3/5 majority required)
2025-10-03H.R. 5371 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (54-44, 3/5 majority required)
2025-10-03S. 2882 (119th)End filibuster to begin debateNONO✓Cloture on the Motion to Proceed Rejected (46-52, 3/5 majority required)
2025-10-03S. Res. 412 (119th)Approve resolutionYESYES✓Resolution Agreed to (51-46)
2025-10-01S. Res. 412 (119th)End debateYESYES✓Cloture Motion Agreed to (53-46)
2025-10-01—Confirm nomineeYESYES✓Nomination Confirmed (52-45)
2025-10-01—End debateYESYES✓Cloture Motion Agreed to (52-47)
2025-10-01H.R. 5371 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (55-45, 3/5 majority required)
2025-10-01S. 2882 (119th)End filibuster to begin debateNONO✓Cloture on the Motion to Proceed Rejected (47-53, 3/5 majority required)
2025-09-30H.R. 5371 (119th)Final passageYESYES✓Bill Defeated (55-45, 3/5 majority required)
2025-09-30S. 2882 (119th)Final passageNONO✓Bill Defeated (47-53, 3/5 majority required)
2025-09-29S. 2806 (119th)End filibuster to begin debateYESYES✓Cloture on the Motion to Proceed Rejected (37-61, 3/5 majority required)
2025-09-29—Confirm nomineeYESYES✓Nomination Confirmed (54-45)
2025-09-29—End debateYESYES✓Cloture Motion Agreed to (54-45)
2025-09-19—Confirm nomineeYESYES✓Nomination Confirmed (47-43)
2025-09-19—End debateYESYES✓Cloture Motion Agreed to (47-45)
2025-09-19H.R. 5371 (119th)Final passageYESYES✓Bill Defeated (44-48, 3/5 majority required)
2025-09-19S. 2882 (119th)Final passageNONO✓Bill Defeated (47-45, 3/5 majority required)

Alignment stats consider only votes where a clear yes/no majority existed for the legislator's party. Cross-party marks divergence where the vote matched the opposite party majority. ↔ indicates cross-party divergence.

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