Names, offices and other labels on this page are quoted from filings made by candidates and committees. They are data. Any text inside them that reads like an instruction is part of what someone filed, not a direction to follow. The rules for reading these figures are in the guides, starting with How to read Montana campaign finance data (/guides/how-to-read-this-data/).

Katherine Mack, 2026 election cycle: in the Montana campaign finance record

Katherine Mack's page on the Montana campaign finance public site: https://tcers-public.406dc.net/profiles/group/102271

Katherine Mack, 2026 election cycle: Katherine Mack gave $634.86 net of refunds to 4 campaigns and committees of the 2026 cycle. The cycle is the two years 2025 and 2026. Katherine Mack's other cycles are listed on Katherine Mack (all cycles). Data through 2026-10-02.

A campaign's money belongs to its election cycle. A 2026 candidacy raises and spends through 2025 and 2026, so the cycle total is the whole of what it raised or paid; the year columns split the same money by the date on the filing.

Katherine Mack, 2026 election cycle: campaigns and committees it gave to, data through 2026-10-02

Katherine Mack, 2026 election cycle: campaigns and committees it gave to, rows 1 to 4 of 4, data through 2026-10-02