United States 2026 · Every advertiser
Mark Nagales for SMC Supervisor D5
This page ran 18 paid political ads on Facebook and Instagram between 7 August 2026 and 27 October 2026. Meta reports $2.1–4.3K of spend, which makes it the 8,269th largest advertiser of the 24,034 pages in our data. Advertiser type: Candidate. Most of its spend was on the Democrats’ side. Race: Local. Paid for by Mark Nagales for Supervisor 2026.
Data from the Meta Ad Library, pulled 4 November 2026. Election on 3 November 2026. · Every ad of this page in Meta’s Ad Library ↗
18
ads
$3.2K
reported spend, range $2.1–4.3K
0.0%
of spend on federal races
$50
median spend per ad
Spend by week the ad started
Tone
Share of the 14 ads with text that our model classified. Attack ads name an opponent.
Topics
Spend by race: Local 100%.
Spend by ad language: English 94%.
The costliest ads
The highest-spend ad of each distinct text, as it ran.
San Mateo County labor unions support Mark Nagales for Supervisor
30 September 2026 · Mark Nagales for SMC Supervisor D5 · $1–1.5K · 300K+ impressions · Promotional · Ad Library
Mercury News: "Mark Nagales is San Mateo County's Best Choice"
22 October 2026 · Mark Nagales for SMC Supervisor D5 · $300 – $399 · 35K+ impressions · Promotional · Ad Library
San Mateo Daily Journal Endorsement: Vote Mark Nagales for Supervisor!
20 September 2026 · Mark Nagales for SMC Supervisor D5 · $300 – $399 · 100K+ impressions · Promotional · Ad Library
Mark Nagales is the only candidate endorsed by former Congresswoman Jackie Speier
22 October 2026 · Mark Nagales for SMC Supervisor D5 · $100 – $199 · 45K+ impressions · Promotional · Ad Library
Proven Leadership. Trusted Results. We launched our campaign to build a stronger San Mateo County—and today, I’m proud to reveal our official campaign video! Backed by a majority of the Board of Supervisors and local leaders across District 5 and San Mateo County, our movement is moving forward to deliver real results for working families. Learn more at marknagales.com
7 August 2026 · Mark Nagales for SMC Supervisor D5 · $100 – $199 · 25K+ impressions · Promotional · Ad Library
Vote Mark Nagales for Supervisor!
26 October 2026 · Mark Nagales for SMC Supervisor D5 · $0 – $99 · 1K+ impressions · Ad Library
Figures cover domestic political ads paid in dollars, from 4 May 2026. Spend is the sum of Meta’s range midpoints; impressions above one million are reported as “1M+”, so impression figures are floors. Each ad counts in the week its delivery started, with its lifetime spend at our last pull; ads still running before the vote are counted as of 31 October 2026.
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