U.S. strikes deal with Canada. United States and Canada struck an agreement, that allows each country to turn back asylum seekers who cross the northern border without authorization. The deal is the latest expansion of President Biden’s efforts, to discourage asylum seekers from entering the United States without authorization. The United States 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. The Safe Third Country Agreement allows Canada to turn back most asylum seekers who come from the US. Canada’s Supreme Court has upheld an agreement that allows authorities to turn back asylum seekers crossing into the country from the United States. Canadian authorities patrolling the border are now able to turn asylum seekers back to the United States.