Open this photo in gallery: A man steams a Canadian flag prior to Liberal Party candidate Mark Carney's election-night speech in Ottawa, on April 28.Matt Mills McKnight/Reuters Timothy Garton Ash is professor of European studies at the University of Oxford and senior fellow at the Hoover Institution at Stanford University. Liberals of all countries, unite! Just as anti-liberal powers outside the West are growing stronger than ever, the assault on everything we stand for has been joined by the United States. Against this massed onslaught of anti-liberal nationalists, we need a determined fightback of liberal internationalists. Canada’s election this week...