The United States’ ban on Canadian goods has kicked in as of 12:01 a.m. It is the latest escalation in the Canada-US trade war after negotiations collapsed in late August, with no word on when talks may resume. Key points and original sources are listed below.

• The United States’ ban on Canadian goods has kicked in as of 12:01 a.m. ET on Tuesday, this comes as the trade war between the U.S. and Canada continues. While the trade restrictions on Canadian goods are unlikely to significantly affect Canadian economic grow...S1

• It is the latest escalation in the Canada-US trade war after negotiations collapsed in late August, with no word on when talks may resume.S2