13 candidates filed, 2 active for the 2026 Senate election in Montana. Party primary on Jun 2, 2026. General election on Nov 3, 2026. FEC Race ID: SMT002026.
Market (kalshi): R 100% · D 0%Rating: Solid Republican · 270toWin · 2026-11-03
Primary
Jun 2, 2026
General
Nov 3, 2026
Candidates
2 active / 13 filed
Total Raised
$8.7M
Outside Spending
$9.2M
Total Spent
$7.5M
Cash on Hand
$1.2M
Incumbent
Steve DainesR(not running)
Past Campaigns
FEC campaign-finance filings on record for 4 cycles (2020–2026), totaling $33.7M raised.
Cycles
4
Total Raised
$33.7M
Latest Cycle
2026
Key Endorsements
1 total
AIPAC
Organizations
Candidate-provided Public data (FEC) AllCiv / Legis1 coverage