ABC News’ Elizabeth Schulze visited a library straddling the border between Canada and the U.S., where Canadians are no longer able to use the U.S. entrance, as a feud between the allies intensifies. --- Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G Watch 24/7 coverage of breaking news and live events on ABC News Live: https://www.youtube.com/watch?v=gN0PZCe-kwQ&ab_channel=ABCNews Watch full episodes of World News Tonight with David Muir here: https://youtube.com/