By Associated Press - Tuesday, April 14, 2015

MADISON, Wis. (AP) - One of the country’s top-spending Democrats has run a full-page newspaper ad calling on Gov. Scott Walker to “stop Wisconsin’s war on science.”

The ad ran in Tuesday’s Wisconsin State Journal. It was paid for by NextGen Climate Action, a political action committee run by Tom Steyer, a retired San Francisco hedge fund billionaire.

The ad references a vote last week by the obscure Republican-controlled Board of Commissioners of Public Lands banning its nine employees from doing any work connected to global warming.

Walker is not a member of the board, but his spokeswoman Laurel Patrick says he doesn’t think it’s unreasonable to require staff to focus on board-related activities.

The ad accuses Walker of protecting the interests of big oil and conservative billionaires like David and Charles Koch.

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