Which GOP senators have publicly defended themselves against 'RINO' labels and how did those campaigns fare?

Checked on January 12, 2026
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Executive summary

Several Republican senators have publicly confronted “RINO” accusations in recent years, with results ranging from political exile to successful defense; notable cases include Liz Cheney’s high-profile defeat after being labeled an anti-Trump “RINO” and Sen. Thom Tillis’s recent public embrace-and-redefinition of the label as he faces intra-party pressure and threats of a Trump-backed primary [1] [2]. The “RINO” charge functions less as a neutral policy critique than as a political weapon wielded by pro-Trump activists and allied groups—Club for Growth–style lists and partisan sites amplify those attacks while establishment actors sometimes push back to preserve electability [3] [1] [4].

1. Thom Tillis: Reframing the insult while under threat

Sen. Thom Tillis publicly acknowledged being called a “RINO” and attempted to neutralize the label by recasting it as “Republican In Need Of Outcomes,” arguing his legislative record distinguishes him from insurgent critics; that defense came amid explicit threats from President Trump and his allies to recruit or back primary challengers, signaling vulnerability even as Tillis pointed to governing accomplishments [2].

2. Liz Cheney: The exemplar of RINO purging—and its consequences

Liz Cheney’s trajectory is the clearest recent example of how the “RINO” charge can produce defeat: party activists and Trump-aligned forces targeted her after she broke with Trump, and she was “purged” from office in a primary defeat that other conservative outlets cited as a template for removing anti‑Trump Republicans, demonstrating the potency of the label when coupled with coordinated primary campaigns [1].

3. Senate moderates and the mixed fortunes of defensive campaigns

Other senators often branded as insufficiently loyal—names invoked by conservative purists include Susan Collins and Lisa Murkowski—have faced sustained pressure from right‑wing groups and “RINO Watch” campaigns, but their fates vary: some survive by arguing electability and local appeal while others face credible primary threats; organized conservative outlets explicitly listed vulnerable incumbents and urged primary challenges, illustrating that survival depends on local dynamics and national backing [1] [5].

4. Organizational muscle: lists, media and the RINO economy

The term’s modern power is amplified by organizations and media that produce “RINO lists” and target memos—Club for Growth–style monitoring is historically central to that effort and partisan websites like RINO Watch publicly name senators for purging—creating a coordinated ecosystem that makes the label actionable by donors and primary voters rather than merely rhetorical [3] [5] [1].

5. Outcomes: when defense works and when it fails

Defenses against RINO charges succeed when incumbents can marshal local political advantages, national endorsements, or demonstrable electoral upside—examples include GOP leaders who prioritized candidate quality over purity and helped win competitive seats—but they fail when label campaigns align with strong grassroots anger and high-profile national backers, as in Cheney’s case where coordinated pressure led to electoral defeat [6] [1].

6. Motives, alternatives and the broader political calculus

The “RINO” weapon serves multiple motives—ideological purification, tactical pressure to produce loyalty, and electoral signaling to primary voters—and alternative viewpoints exist within the GOP about its use: establishment figures stress electability and coalition building while MAGA-aligned actors emphasize ideological fidelity, creating a fault line that shapes which senators will fight the label and how aggressively they must defend themselves [7] [4].

7. Bottom line: a contest of incentives more than definitions

The record shows that who wins a RINO fight depends less on definitions and more on incentives—whether national leaders invest in defending an incumbent, whether donors and local activists mobilize behind challengers, and whether voters prioritize purity or practical governance—thus, public defenses by senators are necessary but not determinative, producing mixed outcomes from survival to ouster [4] [6] [1].

Want to dive deeper?
How have primary challenges backed by Trump affected Senate Republican incumbents since 2018?
What role do groups like Club for Growth and RINO Watch play in financing and organizing primary campaigns?
Which Senate Republicans have successfully repelled RINO-style primary campaigns and what strategies did they use?