Rick Dearborn, President Trump’s former deputy chief of staff, is now one of the key outside players trying to get Congress to pass Trump’s top economic agenda item, the U.S.-Mexico-Canada Agreement on trade.

Dearborn is the executive director of the Pass USMCA Coalition, an ad hoc group of leading trade associations meant to back the trade agreement. It includes PHRMa, the main lobbying arm of drug manufacturers, the National Cotton Council, and the Canadian-American Business Council, among others.