It is a political power play.
The outcome depends on whether Americans see the impeachment investigation as another orchestrated hoax like Russiagate or whether they fall for the hoax as they iniatially did with the Russiagate investigation.
The United States does not have a media. It has a propaganda ministry that helps the ruling elites control the explanations that Americans are given. Polls show that Americans have lost confidence in the media. If so, the impeachment investigation will backfire on the Democrats.
The ultimate purpose of the constant attacks on Trump is to teach the American voters that electing a president who is disapproved by the Establishment is futile. The Establishment simply will not permit any change and will frustrate and destroy any president not selected by them as a candidate.