What went wrong with the U.S.-Canada trade talks?

After talks fail, President Trump's 50% tariff on Canadian goods in effect

These are reasons why Canada-U.S. negotiations trade fell through

U.S. and Canada Are ‘at War’ on Trade as Talks Collapse, Carney Says

Canadian PM: 'We cannot accept what the U.S. offered'

Former VP Pence says trade war with Canada is "last thing we need right now"

Carney outlines last-minute U.S. changes in trade deal terms

Reporter:

Canada condemns Israel’s ‘unlawful invasion’ of Lebanon