President Donald Trump threatened a 35% tariff on some Canadian goods and raised the prospect of increasing levies on most other countries, ramping up his trade rhetoric in comments that weighed on stocks and boosted the US dollar.

President Donald Trump late Thursday threatened a 35% tariff on goods imported from Canada, a dramatic escalation in an on-again, off-again trade war with America’s northern neighbor and one of its mo...

Stock futures plunged after Trump posted the Canada letter, with the S&P 500 indicated almost 0.6% lower late Thursday.

Trump hopes to get lower rates by replacing Fed Chair Jerome Powell with someone who would do what the president wants.

The Supreme Court said in May that it could block any attempts by the White House to dismiss Powell, noting as part of a separate ruling that the Fed “is a uniquely structured, quasi-private entity.”...