Trade war: Trump versus the world

Since his return to the White House, President Donald Trump has started a tit-for-tat trade war between the US and the rest of the world.

From imposing a 25 percent tariff on aluminum and steel imports from around the world, to tariffs on countries like China, Canada and Mexico, and to a threatened 200 percent tariff on French champagne.

What is the latest in Trump’s trade war?