We don’t think it’s going to happen really,” she said during her daily morning news conference on Wednesday, just days before Trump’s threatened tariffs might begin. “And if it happens, we also have our plan.

Mexican President Claudia Sheinbaum on Saturday ordered retaliatory tariffs in response to the U.S. decision to slap 25% tariffs on all goods coming from Mexico, marking the apparent start of a trade war between the two countries.

All along the 2,000-mile border, business leaders, border agents, migrants and their advocates are bracing for change in U.S. policies on trade and immigration.