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Senate Battleground Guide

This November, voters across key Senate battleground states will shape the future of American national security—and determine whether the next Congress advances or undermines the Trump Administration’s Peace Through Strength agenda. Voters deserve to know where these candidates stand on the defining challenges of our time and what their records reveal about the policies they would pursue.

POLARIS National Security’s 2026 Senate Battleground Guide examines the Democratic candidates competing for seats in key U.S. Senate races, cutting through campaign rhetoric and exposing their weak national security records. Some openly embrace the radical left’s positions, while others cloak similar instincts in moderate rhetoric. But across the field, a troubling pattern emerges: candidates who undercut America’s security, antagonize our allies, and appease our adversaries.

These candidates do not merely offer a different vision for U.S. foreign policy. They form the most radical field of Democratic Senate candidates in modern American history. POLARIS lays out the evidence so voters can judge for themselves whether these candidates will protect our national security—or put it at risk.

Nominee Assessments: