Trump has already been saying the election will be “rigged,” as part of a broader effort to delegitimize the presidency of Hillary Clinton (should she win) in advance. If the goal here is to persuade a lot of Trump supporters that the outcome of the election is illegitimate, that could create a large audience that wants to hear this message during a Clinton presidency, a message that Trump’s new media venture could peddle to them for fun and profit. For good measure, Trump can also tell his new media audience that the rest of the media is in on the conspiracy to cover up the election’s illegitimacy. It’s hard to predict what sort of longer term civic impact that might have, but it’s hard to imagine it would be a good one.