February 2017

A special report into the activities of American billionaire Robert Mercer

May 2017

The Observer publishes the story that leads to the first threat of legal action from Cambridge Analytica

18 March 2018

Ex-employee turned whistle­blower Christopher Wylie goes public

25 March 2018

Former Brexit youth campaigner Shahmir Sanni brings new allegations relating to Vote Leave

February 2017

A special report into the activities of American billionaire Robert Mercer

May 2017

The Observer publishes the story that leads to the first threat of legal action from Cambridge Analytica

18 March 2018

Ex-employee turned whistle­blower Christopher Wylie goes public

25 March 2018

Former Brexit youth campaigner Shahmir Sanni brings new allegations relating to Vote Leave

February 2017

A special report into the activities of American billionaire Robert Mercer

May 2017

The Observer publishes the story that leads to the first threat of legal action from Cambridge Analytica

18 March 2018

Ex-employee turned whistle­blower Christopher Wylie goes public

25 March 2018

Former Brexit youth campaigner Shahmir Sanni brings new allegations relating to Vote Leave

February 2017

A special report into the activities of American billionaire Robert Mercer

May 2017

The Observer publishes the story that leads to the first threat of legal action from Cambridge Analytica

18 March 2018

Ex-employee turned whistle­blower Christopher Wylie goes public

25 March 2018

Former Brexit youth campaigner Shahmir Sanni brings new allegations relating to Vote Leave