The move was partly in response to Trump saying the flow of fentanyl and illegal immigrants into the U.S. was a reason for threatening more tariffs on Canada.

The federal government has appointed former Mountie Kevin Brosseau as Canada's new "fentanyl czar," a role created as part of a last-minute deal to avert a major trade war with the United States.

Prime Minister Justin Trudeau announced the appointment of Kevin Brosseau as Canada's fentanyl czar on Tuesday. Here's what he'll do.