"In May 2018, Bruce Rauner, the Governor of Illinois, was reported to be using Data Propria in his re-election campaign.
[3] Circa May–June 2018, Data Propria was reported to be electioneering for Donald Trump's 2020 re-election campaign.
[8][2][3][12][13][14][15][10] Company president Matt Oczkowski and parent company part-owner Brad Parscale denied the accuracy of these reports, despite having claimed, in front of reporters, that Data Propria was working on that campaign.
[8][6] An anonymous source additionally confirmed Data Propria's involvement with the campaign.
[16][17] The letter asked Data Propria to confirm the provenance of its datasets, and especially whether they contain material improperly acquired from Facebook by Aleksandr Kogan or Cambridge Analytica.