CheckSwing — MLB owner federal political contributions

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ⓘ Real $ — adjusted for inflation using BLS CPI-U.

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Donation record

About this archive

CheckSwing tracks federal political contributions by the principal owners of all 30 Major League Baseball franchises, sourced from FEC filings. Records are classified CONFIRMED or PROBABLE under a documented verification rubric; records matching a donor name but no other signal stay UNCERTAIN and do not enter the canonical dataset.

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About the data

FEC.gov