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"A think tank providing independent analysis is very different from a think tank that simply does something on behalf of a political party or a corporate donor," said Zaid Jilani, communications and outreach director at United Republic. "We certainly have a disagreement with them about the role of money in politics ... but I also have a number of friends at Cato who are privately supporting us."
The demonstration — attended by no more than about 20 activists — attracted the attention of trackers from the Washington Free Beacon, a conservative media watchdog group launched last month to counter the left-leaning Media Matters for America.