DemocratNot in office · last served 2028Lost the 2026 general

Mark Casler

Last held office: North Dakota House of Representatives, District 23 (2024–2028). Lost the 2026 race for North Dakota Legislative District 23.

Last office: North Dakota House of Representatives, District 23

Last margin
−67.9
Won 2024

Source: Wikidata, congress-legislators and Open States; 99chambers legislative records

Career

Offices held, and every time Casler was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.

Source: 99chambers results archive (MEDSL, Klarner, state election offices)

Every race Casler has run

Baseline: how the seat voted for president in the same or nearest year. Running ahead of it means Casler won voters the party’s presidential nominee did not; primaries have no baseline.

YearOfficeStageResultOpponentsShareMarginRaisedBaselineAgainst baseline
2026North Dakota Legislative District 23GeneralLostUnopposed——$996R+70.4
2024North Dakota House of Representatives, District 23SpecialWonDennis Nehring (R)15.8%R+67.9——

Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET

Campaign money, 2025–26

Raised
$996
Spent
$86

Source: North Dakota Secretary of State filings through Apr 30, 2026Updated Nov 1, 2026, 7:46 AM ET

Campaign committees

Open committees can still raise and spend money.

ND, Mark Casler for
State
Active

Source: North Dakota Secretary of State filings through Apr 30, 2026Updated Nov 1, 2026, 7:46 AM ET

Seats Casler has held

Source: 99chambers results archive

Who Casler has run against

Source: 99chambers results archive; 2026: civicAPI (unofficial)