The New York Times: Hedge-Fund Magnate Robert Mercer Emerges as a Generous Backer of Cruz

The emergence of rich and relatively low-profile donors like Mr. Mercer could single-handedly jump-start a presidential campaign, said Trevor Potter, a campaign finance lawyer who served as a Republican member of the Federal Election Commission.

“It just takes a random billionaire to change a race and maybe change the country,” Mr. Potter said. “That’s what’s so radically different now.”

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