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Robert Mercer
Former Co-CEO of Renaissance Technologies
Reclusive Billionaire Who Bankrolled Right-Wing Infrastructure
Overview
Robert Mercer is a reclusive computer scientist and hedge fund billionaire who used his wealth to fund a political infrastructure including Breitbart News, Cambridge Analytica, and multiple political campaigns. His financial backing helped Steve Bannon rise to prominence and supported the data harvesting operation that exploited Facebook user data to target voters.
Key Affiliations
Controversies & Concerns
Major investor in Cambridge Analytica, which harvested personal data from millions of Facebook users without consent to build voter targeting profiles
Funded Breitbart News, which became a platform for white nationalist rhetoric and political disinformation under Steve Bannon
Renaissance Technologies Medallion Fund used complex financial structures to convert short-term trading profits into lower-taxed long-term capital gains; IRS dispute over $6.8 billion in back taxes
Funded organizations promoting climate change denial and anti-government conspiracy theories
Bankrolled the rise of Steve Bannon, who became Trump campaign CEO and White House Chief Strategist
After public backlash over Cambridge Analytica scandal, nominally stepped back but daughter Rebekah Mercer continued political operations
Supported the Government Accountability Institute, which produced opposition research used to create narratives about political opponents
Related Investigations (6)
Cambridge Analytica Global OperationsInstitutional Accountability
Tier 2
criticalCambridge AnalyticaElection Integrity
Tier 2
criticalDark Money in American PoliticsFinancial Crime
Tier 1
criticalThe Koch NetworkFinancial Crime
Tier 2
criticalPsychological Manipulation CampaignsInformation Warfare
Tier 4
criticalDark Money & Political Funding NetworksPolitical Finance
Tier 4
criticalKnown Associates & Connections
Steve Bannon
Political operative whose rise Mercer bankrolled; Bannon ran Breitbart and Cambridge Analytica with Mercer funding
Donald Trump
Presidential candidate and president whose campaign infrastructure Mercer funded through Bannon, Breitbart, and Cambridge Analytica
Sources & Documentation
3 documented sources from official records, investigations, and reports
New Yorker: Robert Mercer Profile - The Reclusive Hedge-Fund Tycoon(2017)
Senate Intelligence Committee: Cambridge Analytica Investigation(2018)
IRS: Renaissance Technologies Tax Dispute(2021)
Personal Information
- Born
- 1946-07-11
- Birthplace
- San Jose, California
Education
- •B.S. in Physics, University of New Mexico (1968)
- •M.S. in Computer Science, University of New Mexico
- •Ph.D. in Computer Science, University of Illinois at Urbana-Champaign (1972)
Key Timeline
1993
Joined Renaissance Technologies; helped build the legendary Medallion Fund
2012
Began major political donations; funded Make America Number 1 super PAC
2014
Invested in Cambridge Analytica through SCL Group
2016
Funded Breitbart and Cambridge Analytica; supported Trump campaign infrastructure
2017-01
Resigned as co-CEO of Renaissance Technologies amid political controversy
2018-03
Cambridge Analytica data scandal revealed; company shut down
2021
IRS pursued back taxes on Renaissance Technologies trading structures; dispute involved billions