Supporters of German Chancellor Angela Merkel's Christian Democratic Union (CDU) party cheered and sang as the first exit polls put their share of the vote at 42 percent.
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A shock to the system
We found a tableau of desperation; vast crowds of people pushing and shoving their way forward, away from the continuing bombardment.
Cambridge Analytica played a key role in mapping behaviour of voters in the US election and was used during the EU referendum campaign.