MEXICO CITY (AP) — New Jersey Gov. Chris Christie stepped out on the international stage Wednesday to talk trade with Mexico, but he stayed mum on one of the most pressing questions confronting the two countries and his party: immigration reform.

On a trip designed to help school him in foreign policy and court Hispanic voters should he seek the Republican presidential nomination in 2016, Christie stuck to economic issues and spoke of a “North American energy renaissance” in which the U.S., Mexico and Canada ramp up investments and do away with “foolish” regulations.