President Trump’s “Liberation Day” tariffs came under their first major legal challenge Monday, brought by a libertarian public-interest firm that argues the president overstepped his authority. Trump’s April 2 announcement imposed a baseline 10 percent tariff on imports and targeted dozens of countries with higher “reciprocal” tariffs.

I dunno, I go on holiday for a few days and in my absence Donald Trump has turned the US’s already messed-up tariff schedule into the kind of hopelessly tangled cat’s cradle that even the most down-and-out feline* would reject as a place of repose.

China’s commerce ministry has called on the United States to “completely cancel” its reciprocal tariffs, saying Washington should “correct its mistakes” and return to a path of mutual respect. This comes after the US announced exemptions for consumer electronics and key chipmaking equipment.