Europe must get a handle on immigration to combat a growing threat from rightwing populists, Hillary Clinton has said, calling on the continent’s leaders to send out a stronger signal showing they are “not going to be able to continue provide refuge and support”. In an interview with the Guardian, the former Democratic presidential candidate praised the generosity shown by the German chancellor, Angela Merkel, but suggested immigration was inflaming voters and contributed to the election of Donald Trump and Britain’s vote to leave the EU. “I think Europe needs to get a handle on migration because that is what...