White House economic adviser Kevin Hassett said on Sunday he was hopeful a dispute with Canada over accusations of the deadly fentanyl opioid entering the U.S. across its northern border could be resolved by the end of March.

Kevin Hassett, the Trump administration’s National Economic Council director, said the United States has not launched a trade war with Mexico and Canada but “a drug war.” Hassett joined ABC News’s “This Week,

White House adviser Kevin Hassett suggests a dispute with Canada over fentanyl smuggling into the U.S. might be resolved by March's end. The contention has led to potential tariffs from President Trump,