Donald Trump’s former ambassador to the European Union says nothing should be off the table when it comes to Canada-U.S. trade discussions and that the U.S. president wants immediate change on his irritants like dairy and auto manufacturing.

“You cannot have fair and multilateral trade by someone saying that something is not up for grabs,” Gordon Sondland said in an interview on Rosemary Barton Live on Sunday. “Everything is up for grabs. Everything.”

Sondland referred to Canada’s supply management system — a national policy framework meant to ensure predictable and stable prices by guaranteeing supply-managed dairy farmers a minimum price for their products. Trump has railed against the system for years.