WASHINGTON—A group of U.S. and Canadian business leaders is pushing Congress for a plan to ease restrictions at the land border with Canada. The group, led by the North American Strategy for Competitiveness, wants senior congressional leaders to demand a detailed strategy from the Department of Homeland Security. Specifically, the coalition is worried about what it calls “tremendous delays” as border agents struggle to process vaccination status and COVID-19 test results from inbound travellers. Their letter to senior members of Congress calls on the department to explain how it plans to deal with an influx of visitors from Canada when the travel ban is finally eased. “We understand the necessity of protecting public health and believe that the U.S. can do so while also easing the restrictions at the land border,” the letter reads. However, U.S. Customs and Border Protection “does not appear to have a plan in place to …