For one thing, Fox is more focused on President Biden, a subject of relentless prime-time attacks, than Trump, and the network didn’t air Trump’s speech this week in Washington, D.C., even as it did air a portion of an earlier address Tuesday by former Vice President Mike Pence.

“Trump’s superpower is getting all the coverage. That’s not happening anymore. Fox is not covering him 24 hours a day,” said Daniel Cassino, a media expert who wrote a 2016 book about the network’s influence over American politics. “So it seems that is leading to frustration that he’s not dominating Fox the way he did before.”

That tension boiled over this week, when Trump lashed out at Fox and its flagship morning program, “Fox & Friends,” after two of the show’s longtime co-hosts threw cold water on polling suggesting young voters felt Trump was the best choice for Republicans looking to win back the White House.

Other Murdoch-owned media properties have separately fired off editorials critical of Trump in the wake of damaging revelations from the House panel investigating the Jan. 6, 2021, attack on the Capitol.