Freedom Partners, a conservative activist group partially funded by the Charles and David Koch, urged the White House Friday to abandon its planned $200 billion in tariffs against China, which the Trump administration is set to impose next week.

“The costs of this trade war are mounting on our consumers and businesses,” said Freedom Partners Executive Vice President Nathan Nascimento. “Just ask the farmers who are losing profits and market share. Washington imposes tariffs with one hand, while offering government aid with the other.”