P.M. Edition for Jan. 31. The White House said that tariffs against Canada, Mexico and China will go into effect on Saturday. WSJ trade and economic policy reporter Gavin Bade tells us what the impact could be. Plus, weak loan growth is a worry, particularly for regional banks. We hear from WSJ Heard on the Street writer Telis Demos about what that could mean for their business. And we’ve got the latest on the deadly aircraft collision in Washington, D.C. Alex Ossola hosts.

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