Canada announced retaliatory tariffs as high as 50 percent on hundreds of American products, including steel, aluminum, railway locomotives, smartphones, dishwashers, and various fish. The move follows collapsed trade talks and President Trump’s earlier imposition of a 50 percent tariff on some imports, invoking a little‑known 1930 law that some lawyers call obsolete. The legal ambiguity could lead to further court battles. The escalation began after Canadians reached out to negotiate with the Trump administration last month, but talks devolved into a trade war. Meanwhile, political news includes South Carolina’s Republican Senate primary, Oklahoma’s governor race, and new research suggesting one in four N.F.L. players may develop C.T.E.

Dolly Parton died at 80, leaving a legacy as a pioneering country singer and philanthropist. Born in a one‑room cabin, she became the first in her family to graduate high school, topped country radio for decades, and later donated over 200 million books to children. Her flamboyant style, described as a “cartoon bimbo” with a platinum wig and rhinestones, was a deliberate subversion of rural stereotypes.

Interpol’s internal challenges and other top news round out the evening’s coverage.