Maryland 2026: which candidates have the smallest public footprint?

Introduction: The State of Maryland 2026 Candidate Research

Maryland's 2026 election cycle includes 385 tracked candidates across five race categories: U.S. House, U.S. Senate, state legislature, county-level offices, and judicial retention. The party breakdown is 95 Republican, 277 Democratic, and 13 other-party or unaffiliated candidates. Every one of these 385 candidates has at least one source-backed claim in the public record, but the depth of those claims is shallow. The average number of source-backed claims per candidate stands at 1.3. That figure is low because the public-records corpus for Maryland is weighted heavily toward basic registration and filing data, with little beyond.

For comparison, the national 2026 cycle tracks 11,185 candidates across 54 states and territories. Of those, 5,643 are FEC-registered, and 5,542 are registered only at the state Secretary of State level. Zero candidates nationwide are cross-platform verified — meaning no candidate has confirmed profiles on FEC, Wikidata, and Ballotpedia simultaneously. Only 259 candidates nationally are thinly sourced with zero claims; Maryland's 385 candidates all have at least some claims, but the thinness emerges in the distribution of those claims.

The top three most-researched candidates in Maryland — Harry Dunn, John Anthony Jr. Olszewski, and Jonathan White — each have more than five source-backed claims. But the remaining 382 candidates average fewer than one claim each beyond the minimum. This report identifies exactly where the research gaps are thinnest, so campaigns, journalists, and researchers can prioritize filling them.

Why Source Density Matters for Competitive Research

Opposition research relies on source-backed profile signals. A candidate with only one or two public records — typically a filing form and a brief biography — leaves opponents and journalists guessing about their policy positions, past statements, financial interests, and political network. In Maryland, where the average claim count is 1.3, the vast majority of candidates are effectively a blank slate in the public record.

Campaigns that invest early in building out their own candidate's profile — by filing detailed FEC reports, maintaining a current Ballotpedia page, and linking to a Wikidata entry — create a competitive advantage. They control the narrative before opponents can fill the vacuum with assumptions or incomplete research. Conversely, candidates who remain thinly sourced invite opponents to define them first.

The 2026 cycle's national average of 0.5 FEC-registered candidates per state is misleading because Maryland's 67 FEC-registered candidates (out of 385) is actually above average. But FEC registration alone does not create a robust profile. Only 17.4% of Maryland candidates have federal filings, meaning 82.6% are registered only at the state level. Those state-only candidates are the thinnest group: their public records are limited to state filing forms, which often lack detailed financial disclosures, campaign contributions, or biographical background.

The FEC Filing Gap: Only 67 of 385 Candidates

Federal Election Commission filings are the gold standard for tracking campaign finance, but in Maryland only 67 candidates have filed. That includes candidates for U.S. House and U.S. Senate, but excludes state legislative and local candidates. The remaining 318 candidates are registered with the Maryland State Board of Elections, which requires less granular financial data.

For opposition researchers, the FEC gap means that for 82.6% of the candidate field, there is no public record of who is donating to their campaign, how much they have raised, or how they are spending money. This is especially problematic for competitive primaries where outside spending can be decisive. A candidate who has not filed an FEC report may still be raising money, but that money is invisible to the public.

The 67 FEC-registered candidates include all major-party U.S. House and U.S. Senate contenders, plus a handful of third-party candidates. But even among those 67, the average number of source-backed claims is only 2.1 — slightly higher than the state average but still thin. Many have only a statement of candidacy and a single quarterly report. No candidate has cross-platform verification across FEC, Wikidata, and Ballotpedia.

Cross-Platform Verification: Zero Candidates

Cross-platform verification — confirming a candidate's identity and basic information across FEC, Wikidata, and Ballotpedia — is a benchmark for research readiness. In Maryland, zero candidates meet that standard. This is consistent with the national figure: zero out of 11,185 candidates nationwide are cross-platform verified.

The absence of cross-platform verification means that for every Maryland candidate, researchers must manually reconcile discrepancies between sources. A candidate's name may appear differently on the FEC filing versus the state board listing. Their party affiliation may be inconsistent. Their official website may not match the contact information on file. These small inconsistencies compound when scaling research across hundreds of candidates.

For campaigns, this is both a risk and an opportunity. A candidate who proactively ensures their profiles are consistent across all three platforms will stand out as transparent and organized. Opponents who remain inconsistent invite scrutiny. Journalists covering Maryland races often cite the difficulty of verifying basic facts as a reason for shallow coverage of downballot races.

The Thinness of State-Only Candidates

State-only candidates — those registered with the Maryland State Board of Elections but not the FEC — make up 82.6% of the field. Their public records typically consist of a candidacy filing form, a brief statement of organization, and sometimes a financial disclosure if they exceed a spending threshold. Many of these forms are PDFs scanned from paper, making them difficult to search or analyze programmatically.

The average claim count for state-only candidates is 1.1, barely above the minimum. This means that for most of these candidates, the only public information is their name, office sought, party affiliation, and filing date. No biography, no policy positions, no donor list, no voting record (if they are challengers). This is the thinnest part of the Maryland corpus.

For Republican campaigns, this thinness is a double-edged sword. It means Democratic incumbents have less public ammunition to use against them, but it also means Republican challengers cannot easily build a positive profile without investing in their own transparency. For Democratic campaigns, the thinness of state-only candidates makes it harder to vet primary opponents or identify potential general election liabilities.

Race-by-Race Research Gaps

The thinnest research areas vary by race type. For U.S. House and U.S. Senate races, FEC filings provide at least some financial data, but biographical information is often missing. The three most-researched candidates — Harry Dunn (running for U.S. House in MD-03), John Anthony Jr. Olszewski (running for U.S. House in MD-02), and Jonathan White (running for U.S. House in MD-01) — each have more than five claims because they have held previous office or have high-profile campaigns. But even they lack cross-platform verification.

For state legislative races, the research gap is wider. Most state House and Senate candidates have only their filing form. No detailed financial disclosures are required unless they raise or spend over $1,000. As a result, many candidates have zero financial records in the public domain. This is a critical gap for opposition researchers who want to track donor networks or identify conflicts of interest.

County-level races — including county council, school board, and judicial retention — are the thinnest of all. Many of these candidates file only with their local board of elections, and those records are not always digitized or available online. The average claim count for county-level candidates is 0.8, meaning some have zero source-backed claims. This is where the Maryland corpus is most vulnerable to incomplete research.

Party-Level Disparities in Source Coverage

The party breakdown of 95 Republican, 277 Democratic, and 13 other-party candidates creates uneven research depth. Democratic candidates, because they are more numerous and include incumbents, have a slightly higher average claim count (1.4) than Republicans (1.1). But the difference is small and driven by a handful of well-known incumbents.

Republican candidates are disproportionately state-only: 82 of 95 (86.3%) are not FEC-registered, compared to 233 of 277 (84.1%) Democrats. The gap is narrow, but it means Republican candidates are slightly more likely to be in the thinnest category. For national Republican campaigns looking at Maryland as a potential pickup, the thinness of downballot Republican candidates means there is less public data to use in recruiting or vetting.

Third-party and unaffiliated candidates (13 total) are the thinnest group of all. Their average claim count is 0.6, and only one has an FEC filing. This is typical for third-party candidates nationally, but in a state like Maryland where third-party candidates can sometimes play spoiler, the lack of research depth is notable.

What Researchers Would Examine Next

For each of the 385 Maryland candidates, a thorough opposition research program would seek to fill the gaps identified in this report. The first priority is financial disclosures: for state-only candidates, researchers would request campaign finance reports from the Maryland State Board of Elections, which are public but often require manual retrieval. For FEC-registered candidates, researchers would pull all quarterly reports and itemized contributions.

The second priority is biographical verification. Researchers would check local news archives, candidate websites, social media accounts, and previous campaign materials. For incumbents, voting records and committee assignments are critical. For challengers, professional background and community involvement are key. The absence of cross-platform verification means researchers must manually cross-reference multiple sources.

The third priority is network mapping. Who are a candidate's donors? What interest groups have endorsed them? What family members are involved in their campaign? For state-only candidates, this work is almost entirely manual. For FEC-registered candidates, donor data is available but requires analysis to identify patterns.

How Campaigns Can Close Research Gaps

Campaigns that want to control their own narrative can take several steps to thicken their public profile. Filing complete FEC reports on time is the most important action. Even state-only candidates can voluntarily file with the FEC if they cross certain thresholds, and doing so adds transparency.

Maintaining a current Ballotpedia page is another low-cost, high-impact step. Ballotpedia editors will update a page if a candidate provides verified information. A complete Ballotpedia entry includes biography, policy positions, endorsements, and campaign contact info. Similarly, creating a Wikidata entry — even a minimal one — helps search engines and researchers find consistent data.

Finally, candidates should ensure their official website includes a detailed biography, a list of endorsements, and a link to their campaign finance filings. The more information a candidate voluntarily provides, the less room opponents have to define them. In a cycle where the average candidate has only 1.3 claims, every additional piece of public data is a competitive advantage.

Methodology: How We Measured Research Depth

This report is based on OppIntell's tracking of 11,185 candidates across 54 states for the 2026 election cycle. For each candidate, we record the number of source-backed claims — that is, pieces of information that can be verified against a public record such as a filing form, a news article, or an official biography. Claims are counted at the attribute level: name, office, party, financial data, biographical details, endorsements, and voting record.

Cross-platform verification is defined as having consistent, confirmed profiles on all three of FEC, Wikidata, and Ballotpedia. A candidate must have an active FEC filing, a Wikidata item with at least a label and description, and a Ballotpedia page with at least a candidate infobox. No Maryland candidate currently meets all three criteria.

The thinness metric is the inverse of research depth. A candidate with 0-1 claims is considered "thinly sourced." Nationally, 259 candidates fall into this category. Maryland has no candidates with zero claims, but 382 of 385 have fewer than five claims. The average of 1.3 claims per candidate places Maryland in the middle of the pack nationally — better than states with many zero-claim candidates, but far from the robust research environments of states like California or New York.

Conclusion: The Transparency Imperative for 2026

Maryland's 2026 candidate corpus is thin but not barren. Every candidate has at least some public record, but the depth is insufficient for thorough opposition research. The absence of cross-platform verification, the low FEC registration rate, and the reliance on state-only filings create significant gaps. Campaigns that invest in transparency will stand out; those that remain thinly sourced will be vulnerable to incomplete or inaccurate characterizations by opponents.

For journalists and researchers, the message is clear: expect to do manual legwork for the vast majority of Maryland candidates. The public records exist, but they are scattered across multiple systems and often lack detail. The 2026 cycle will reward those who start early and dig deep.

OppIntell continues to track these gaps and update the research corpus as new filings and public records become available. For the latest on Maryland candidate research, visit our Maryland state page and methodology guide.