The U.S. and Canada have struck an agreement that allows each country to turn back asylum seekers who cross the northern border without authorization, according to internal documents obtained by The Times and a source familiar with the negotiations. As part of the agreement, Canada is expected to announce 15,000 slots for migrants from the Western Hemisphere to apply to enter the country legally

https://www.latimes.com/politics/story/2023-03-23/biden-canada-northern-border-agreement-trudeau