Facebook Fallout Deals Blow to Mercers’ Political Clout

Several Republicans with knowledge of Cambridge’s business said that fallout from the Facebook scandal — combined with widespread doubts about the accuracy of Cambridge’s psychological profiles of voters — had effectively crippled the firm’s election work in the United States. “They’re selling magic in a bottle,” said Matt Braynard, who worked alongside Cambridge on the Trump campaign, for which he served as the director of data and strategy, and now runs Look Ahead America, a group seeking to turn out disaffected rural and blue-collar voters. “And they’re becoming toxic.”

Rebekah Mercer serves on Cambridge’s board and in the past has worked to drum up campaign business for Cambridge, according to Republicans who have worked with or competed against the firm. Former Cambridge employees said she was close to Alexander Nix, the company’s chief executive, who was suspended after reports on Cambridge’s harvesting of Facebook data.

In recent years, the Mercers have become among the most prominent and highly scrutinized political donors in the United States. In the early years of the Obama administration, they began doling out tens of millions of dollars to an eclectic array of conservative groups — many of them outside Washington’s mainline Republican establishment. Robert Mercer invested $10 million in Breitbart News, the nationalist website, bringing on Steve Bannon as chairman, while Rebekah  Mercer joined the boards of leading conservative think tanks.