If you want to understand where political influence in America is being built right now, look beyond cable news and social feeds. Substack has quietly become one of the most powerful platforms for US political commentary, and the influencers writing there are reaching millions of highly engaged, paying readers every single day. For brands and marketers, that represents both an opportunity and a challenge: how do you identify the right political Substack influencers, understand their audiences, and determine whether a partnership makes sense?

This guide breaks down the top Substack influencers in US politics — from history professors with multi-million subscriber counts to former government officials redefining independent media. We'll cover who they are, what makes their audiences so distinctive, how the brand sponsorship landscape on Substack is evolving, and what smart brands should know before entering this space.

Why Substack Dominates US Political Discourse

The numbers make it hard to argue against Substack's grip on political media. According to analysis of the platform's top publications, 15 out of 34 Substack publications with over 500,000 subscribers — more than 40% — focus on US politics. That concentration is no accident. The 2024 election cycle turbocharged engagement across the entire platform, with Substack growing from 5,000 fans on one major creator panel in 2024 to a 31,450% jump in creator mentions since 2018. Political content was the central driver of that surge, catering to readers on both sides of the aisle who were hungry for analysis that went deeper than a tweet or a cable news segment.

What separates Substack from traditional social media is the direct, subscription-based relationship between writers and readers. The platform's model empowers independent voices to build financially sustainable careers without relying on algorithmic distribution or advertiser approval. Top political Substack earners bring in six or even seven figures annually through a mix of subscriptions, paid posts, and sponsorship deals — a model that keeps their loyalty squarely with their audience rather than with corporate gatekeepers. For brands, this translates into highly loyal, attentive readerships that are far more receptive to authentic partnerships than the scroll-and-forget audiences of traditional social platforms.

Top Substack Influencers in US Politics

1. Heather Cox Richardson – Letters from an American

No list of political Substack influencers starts anywhere but here. Heather Cox Richardson is a Boston College history professor who has built the single most-subscribed individual creator account on all of Substack, with over 3 million subscribers and counting. Her newsletter, Letters from an American, connects current political events to broader patterns in American history — published nightly, seven days a week, without fail since 2019. Named to TIME100 Creators 2025, Richardson also maintains 3.2 million Facebook followers and regularly hosts live evening chats that function as a modern version of the nightly news. Her journalistic voice has been described as "sincere, humble, approachable, and jargon-free," which explains why her audience spans demographics far beyond typical political media consumers. For brands seeking the widest possible reach in the US political newsletter space, Richardson's platform is in a category of its own.

2. Bari Weiss – The Free Press

Bari Weiss turned her departure from The New York Times into one of the most prominent independent media brands in the country. The Free Press has become a hub for intellectual discourse and cultural commentary, with tens of thousands of paying subscribers drawn to its willingness to challenge orthodoxies across the political spectrum. Weiss's ability to amplify a range of voices — from classical liberals to heterodox conservatives — has created a publication that transcends easy political labeling. In 2024, The Free Press was cited as one of the high-profile migrations from legacy media that helped fuel Substack's explosive growth. For brands targeting educated, news-literate readers who value independent thought, The Free Press offers premium positioning.

3. Robert Reich – Reich's Newsletter

Robert Reich brings serious institutional credibility to Substack. A former US Secretary of Labor and current professor at UC Berkeley, Reich has spent decades advocating on economic inequality and social justice. His Substack extends that mission directly to readers, focusing on critiquing corporate power, promoting democratic values, and engaging the public in accessible discussions about economic policy. Reich also co-founded Inequality Media specifically to raise awareness about the impacts of wealth disparity. His audience skews toward progressive, policy-minded readers who want depth and context — not hot takes.

4. The Dispatch – Jonah Goldberg & Stephen Hayes

The Dispatch occupies a distinctive position in the political Substack ecosystem as a leading voice for center-right analysis that hasn't abandoned intellectual rigor for partisan score-settling. Founded by Jonah Goldberg and Stephen Hayes, The Dispatch offers fact-driven conservative analysis, producing long-form essays, deep-dive policy discussions, and podcasts that dissect political trends and legislative developments. Its measured tone and commitment to accuracy have made it one of the most respected publications in the political newsletter space. For brands that need to reach right-leaning but reason-driven audiences, The Dispatch represents one of the most credible vehicles available anywhere in independent media.

5. Joyce Vance – Civil Discourse

Joyce Vance is a law professor and former US Attorney whose Substack, Civil Discourse, brings rigorous legal analysis to political events that often leave general audiences confused. Known for her commentary on NBC and MSNBC, Vance actively engages in discussions about law, politics, and social issues, often highlighting the intersection of justice, women's rights, and constitutional governance. She is also the author of Giving Up Is Unforgivable, which extended her reach beyond the newsletter format. Her audience is composed of engaged, civic-minded readers who want to understand the legal dimensions of political news — a highly specific and valuable demographic for brands in adjacent categories like publishing, education, legal services, and civic tech.

6. Matt Yglesias – Slow Boring

Matt Yglesias, co-founder of Vox and one of the original political bloggers, built Slow Boring into one of the most prolific and financially successful paid newsletters on Substack. Publishing five paid posts per week at $10 per month, Yglesias covers economics, housing policy, immigration, and political strategy in a style that makes genuinely wonky material engaging. Press Gazette estimates at least 13,000 paying subscribers, implying annual revenue above $1 million. His readership spans the political spectrum and is known for its appetite for evidence-based, long-form policy analysis — making Slow Boring a compelling sponsorship opportunity for brands targeting highly educated, policy-engaged professionals.

7. Judd Legum – Popular Information

Judd Legum is the founder and author of Popular Information, an independent newsletter built around accountability journalism. Legum's content focuses on scrutinizing political figures and policies, particularly around corporate influence in politics, and he engages his audience through detailed investigative reporting that emphasizes transparency. With approximately 173,000 Substack subscribers, Popular Information punches well above its weight in terms of media impact — its reporting has been cited by major outlets and has directly influenced political and corporate decision-making. For brands committed to transparency and social responsibility, Legum's newsletter offers a uniquely credible environment.

8. Steve Schmidt – The Warning

Steve Schmidt is a veteran Republican political strategist who turned his insider knowledge into The Warning, a Substack built around political forecasting and accountability. Schmidt brings a perspective shaped by decades working inside the Republican Party machine, which gives his critiques of the current political landscape a distinctive authority. His newsletter emphasizes governance, accountability, and civil rights, and his audience of approximately 173,000 subscribers is composed of readers who want political analysis grounded in institutional knowledge. Schmidt is particularly valuable for campaigns or brands seeking to reach politically active, center-to-left audiences who are deeply invested in democratic norms.

9. Adam Kinzinger – Country First

Former US Congressman and Air Force veteran Adam Kinzinger made his name as one of the most prominent Republican voices willing to publicly break with his party on matters of democratic principle. Now a CNN Senior Political Commentator and the author of the bestselling book RENEGADE, Kinzinger has built a Substack presence that extends his reach to an audience of politically engaged readers who span traditional party lines. His newsletter, Country First, appeals to moderate Republicans, independents, and principle-driven conservatives who have grown disillusioned with partisan politics — a constituency that is both hard to reach and highly sought-after by brands.

10. MeidasTouch

MeidasTouch is a team effort rather than a solo newsletter, founded by brothers Ben, Brett, and Jordy Meiselas, who bring backgrounds in law, marketing, and video production to their independent pro-democracy news network. Their Substack is the premium hub for their broader media brand, offering bonus articles, exclusive content, and interactive community features. MeidasTouch has grown rapidly through a strong social media presence and timely, sharply produced content aimed at politically active audiences — positioning it as one of the most engagement-driven political Substacks available for potential brand partnerships.

What Makes Political Substack Influencers Different from Social Media Creators

The audiences that political Substack influencers command are fundamentally different from the passive follower bases typical of Instagram or TikTok. Substack readers are, by definition, opt-in: they chose to subscribe, many pay for the privilege, and they read longer-form content on a regular basis. According to a 2025 Pew Research Center survey, 41% of US adults report reading at least one independent newsletter monthly — a clear signal that newsletter media habits have moved firmly into the mainstream. Brands and marketers that partner with high-profile Substack writers find that endorsements often drive more engagement than traditional advertising, precisely because of the trust writers have built within their communities.

That trust operates differently from the parasocial loyalty seen on visual social platforms. Substack audiences come to political newsletters specifically for analysis, judgment, and perspective — which means that when a writer they trust recommends or mentions a brand, the signal carries genuine weight. This is a meaningful distinction for any brand assessing the ROI of an influencer partnership. Metrics like open rates, click-through rates, and paid subscription conversion all serve as stronger indicators of genuine audience engagement than raw follower counts on social media. Understanding these nuances is exactly where a sophisticated influencer marketing approach pays dividends. You can explore influencer rankings across platforms on StarNgage to benchmark political creators against the broader influencer landscape.

Brand Opportunities with Substack Political Influencers

The sponsorship landscape on Substack is evolving rapidly. In late 2025, Substack launched a limited beta program allowing a select group of writers to insert paid sponsorships directly into their newsletters — formalizing a practice that had already been happening organically for years. The platform's approach keeps creators firmly in control: these are direct, opt-in partnerships that creators choose, shape, and approve, with Substack acting as an infrastructure layer rather than an ad network. The goal, according to Substack co-founder Hamish McKenzie, is to help creators earn additional revenue while preserving editorial control and keeping paid subscriptions at the center of the business model.

For brands, this creates several viable approaches to working with political Substack influencers:

• Sponsored content integrations: Working directly with newsletter authors to create native mentions or dedicated sections that fit seamlessly into the editorial voice.
• Sponsored posts: Standalone issues or segments dedicated to a brand story, positioned within the newsletter's existing content framework.
• Cross-platform amplification: Many top political Substack influencers also maintain large followings on Facebook, YouTube, and podcast platforms, allowing brands to extend reach beyond the newsletter itself.
• Community and event activations: Several top political Substack writers host live chats, Q&As, and subscriber-only events that offer additional touchpoints for brand engagement.

The key to success in this space is alignment. Brands targeting highly educated, politically engaged professionals — in categories like publishing, financial services, technology, civic tech, legal services, and media — will find the most natural fit. Brands that attempt to force a misaligned partnership risk damaging both the creator relationship and the brand perception among a notoriously discerning audience. Reviewing real-world influencer campaign case studies can provide valuable context for calibrating expectations and structuring agreements appropriately.

How to Find and Vet Political Substack Influencers for Your Brand

Identifying the right political Substack influencer for a brand partnership requires moving beyond simple subscriber counts. Engagement quality, audience demographics, content consistency, and audience authenticity all matter. A newsletter with 100,000 deeply engaged, paying subscribers may deliver far greater value than one with 500,000 free subscribers who never click through. Before committing to any partnership, brands should evaluate the following:

• Subscriber composition: Are subscribers primarily free or paid? Paid subscriber ratios signal genuine audience investment.
• Publishing cadence: Top political newsletters post frequently and consistently — a sign of both creator professionalism and sustained audience engagement.
• Engagement metrics: Open rates, comment activity, and social restacks reveal how actively readers consume and share content.
• Audience alignment: Demographics, political leaning, and reader interests should complement the brand's target customer profile.
• Fake follower risk: Even in newsletter media, inflated subscriber counts can be a reality. Using a fake follower checker across a creator's broader social presence adds an important layer of due diligence.

Effective vetting also means understanding how a Substack influencer positions themselves within the broader political media ecosystem. Many of the top political newsletter writers also publish on social media, appear on podcasts, write books, and make media appearances — all of which affect how their brand partnerships are perceived. Checking an influencer's cross-platform presence through tools like the brand ranking intelligence on StarNgage gives marketers a holistic picture of reach and influence before any agreement is signed.

The rise of Substack as a political media force is not a short-term trend. With political newsletters accounting for over 40% of the platform's top publications by subscriber count, and with Substack itself now formalizing sponsorship infrastructure, the conditions for sustainable brand-creator collaboration in this space have never been stronger. The brands that move thoughtfully — choosing partners whose audiences genuinely overlap with their customers and structuring authentic rather than transactional arrangements — will build the kind of awareness and credibility that traditional advertising cannot replicate.

Final Thoughts

The top Substack influencers in US politics have built something rare: large, loyal audiences that actively choose to pay for analysis and perspective in an era of infinite free content. From Heather Cox Richardson's 3 million-subscriber history-meets-politics newsletter to the accountability journalism of Judd Legum and the center-right rigor of The Dispatch, these creators represent a new tier of media influence that operates largely outside the metrics and conventions of traditional social media marketing.

For brands willing to understand the nuances of this space — the importance of editorial authenticity, audience trust, and genuine content alignment — political Substack influencers offer access to some of the most engaged, educated, and civic-minded audiences available anywhere in digital media. The key is approaching these partnerships with the same rigor and data-driven intelligence that defines any high-performing influencer marketing strategy: deep audience analysis, careful vetting, and smart campaign management from discovery through performance measurement.