A longtime political patron, Mr. Diamond is one of the elite fund-raisers Mr. McCain’s current presidential campaign calls Innovators, having raised more than $250,000 so far. At home, Mr. Diamond is sometimes referred to as “The Donald,” Arizona’s answer to Donald Trump — an outsized personality who invites public officials aboard his flotilla of yachts (the Ace, King, Jack and Queen of Diamonds), specializes in deals with the government, and unabashedly solicits support for his business interests from the recipients of his campaign contributions.
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Their 26-year relationship illuminates how Mr. McCain weighs requests from a benefactor against his vows, adopted after a brush with scandal two decades ago, not to intercede with government authorities on behalf of a donor or take other official action that serves no clear public interest.
In California, the McCain aide’s assistance with the Army helped Mr. Diamond complete a purchase in 1999 that he soon turned over for a $20 million profit. And Mr. McCain’s letter of recommendation reinforced Mr. Diamond’s selling point about his McCain connections as he pursued — and won in 2005 — a potentially much more lucrative deal to develop a resort hotel and luxury housing.
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In Arizona, Mr. McCain has helped Mr. Diamond with matters as small as forwarding a complaint in a regulatory skirmish over the endangered pygmy owl, and as large as introducing legislation remapping public lands. In 1991 and 1994, Mr. McCain sponsored two laws sought by Mr. Diamond that resulted in providing him millions of dollars and thousands of acres in exchange for adding some of his properties to national parks.
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New York Times