Trump's long-threatened tariffs against Canada and Mexico are now in effect, kicking off trade war
apnews.com
Starting just past midnight Tuesday, imports from Canada and Mexico are now taxed at 25%, with Canadian energy products getting tariffed at 10%.

WASHINGTON (AP) — President Donald Trump’s long-threatened tariffs against Canada and Mexico finally went into effect Tuesday, putting global markets on edge and setting up costly retaliations by the United States’ North American allies.