This may wind up being a bigger problem for Heartland and friends:

The dead are allowed to vote - on the Board of Directors of a denialist, tax-supported charity
John Mashey has his latest opus up, on the malfeasance of various denialist organizations that should be investigated for violations of their IRS 501 c/3 tax-deductible charity status.
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Fred Singer’s Science and Environmental Policy Project, the Heartland Institute, and possibly others have given more than sufficient grounds for IRS agents and/or state Attorney General offices charged with supervising charities to start using some subpoena power. They’re supposed to be educational, but are the opposite. In SEPP’s case, they appear to have a non-functioning board, including a chairman who continued to supervise Singer two years after the chairman had died. They sign affidavits saying they’re not lobbying when they sure appear to be doing so. And money flows are incredibly weird, with assets disappearing and sometimes reappearing in strange ways..