Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) The head of a data analytics company linked to the Trump campaign contacted WikiLeaks founder Julian Assange in 2016 regarding thousands of Hillary Clinton's emails kept on a private server while she was secretary of state, according to four sources familiar with the outreach. Alexander Nix, the chief executive of Cambridge Analytica, sent an email to several people including top Donald Trump donor Rebekah Mercer, relaying that he had emailed Assange seeking access to emails from Clinton's private server to turn them into a searchable database for the campaign or a pro-Trump political action committee, two of the sources said.Cambridge Analytica was hired in the summer of 2016 as part of the Trump campaign's three-pronged data operationNews of the email exchange comes amid federal investigations into whether there was collusion between the Trump campaign and Russia 
 Question:The committee asked the digital firm for documents earlier this month, and _ said it was cooperating.

Cambridge Analytica