Oliver Willis, in a recent Substack post, goes into further details on Sources Go Direct, and how the Harris campaign is doing this (via Dave Winer). The last paragraph is the best:

Frankly, the relationship between Trump and the press, which follows in the footsteps of the relationship George W. Bush and Dick Cheney had with many of the same outlets, shows that you can just wait them out. Like a toddler who has a tantrum, let them complain and bellow and fume, and then they will lose interest. They are attracted to shiny, loud objects, not substance, and by generating her own heat, Harris can do what’s best for the people, not the elites who ultimately do not care about our well-being at all.