Analysis of information sources in references of the Wikipedia article "Cindy McCain" in English language version.
Though he had little money of his own because he had been a career naval officer, his wife's fortune allowed him to lend $167,000 to the campaign, which was permissible under campaign laws then.
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: CS1 maint: bot: original URL status unknown (link), The Arizona Republic (June 5, 1999), via Archive.org: "In 1982....the McCains lent $169,000 of their own money to the campaign....In the end, including the personal loans, McCain would raise more than $550,000 to win the seat."