North Dakota › Cass County › North Dakota Senate District 11
2 candidates are tracked for North Dakota Senate District 11 on the November 3, 2026 ballot: Tim Mathern and Christine O'Riley. Candidate information follows official Cass County election filings; verify with the official election office linked below.
Tim Mathern (Democratic-NPL), Christine O'Riley (R) are on the November 3, 2026 ballot for North Dakota Senate District 11. Tim Mathern is the sitting member, per the Legislative Assembly's members-by-district roster. Party nominees were chosen at the June 9, 2026 primary, per the North Dakota Secretary of State's 2026 general-election candidate list.
Democratic-NPL · Incumbent
Tim Mathern is the Democratic-NPL nominee for North Dakota Senate District 11 on the November 3, 2026 ballot, per the North Dakota Secretary of State's 2026 general-election candidate list. Tim Mathern is the sitting member, per the Legislative Assembly's members-by-district roster.
Campaign site →Christine O'Riley is the R nominee for North Dakota Senate District 11 on the November 3, 2026 ballot, per the North Dakota Secretary of State's 2026 general-election candidate list. This name has not yet been researched.
2 candidates are tracked for North Dakota Senate District 11 on the November 3, 2026 ballot: Tim Mathern and Christine O'Riley. Candidate information follows official Cass County election filings; verify with the official election office linked below.
Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for North Dakota are on the North Dakota election hub at theballotbrief.com.
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