There are two questions. One is: Was there coordination or collusion between the campaigns and these technology tools, which overwhelmed the search engine tools so that certain stories popped up at the top of your newsfeed. The second is, on a broader basis going forward: How do we prevent this from happening again?” Warner said.Likewise, House investigators plan to interview former Trump campaign digital director Brad Parscale as part of their probe. A Democratic committee source said they want to know whether Parscale or anyone else from the campaign helped guide Russian targeting of fake news stories.…Another Trump campaign digital staffer said that there is no evidence to prove the theory popular among Democrats, but said that only Facebook can answer three critical questions: were the same databases used by the Trump campaign and Russian operatives to coordinate targeting of voters; was money used to promote pro-Trump posts, and, if so, how much was spent and by whom; and will Facebook reveal if bots were successfully used to push fake news posts?“Those three questions answer everything,” the second Trump campaign staffer said.