President Trump’s Federal Reserve nominee Judy Shelton has long been a proponent of free trade and once advocated for an open border with Mexico, a clear contrast with the president who has focused on barriers at the southern border.

In the Wall Street Journal opinion piece “North America Doesn’t Need Borders,” Shelton wrote in 2000 that opening the U.S.-Mexico border is “steeped in pragmatism” and a “fulfillment of open markets.”

She argued easier movement of people across the border would ensure resources “whether human, financial or material, are more efficiently utilized in the interests of all market participants.” She held up the auto industry as a good example of how the flow of people, goods and ideas across the southern border has benefited all.