The coverage adds up to nothing more than Mueller is looking at every possible angle … which is his job.
That doesn’t absolutely rule out the chance that the prosecutor is on a witch hunt. After all, he did bring a lot of Hillary Clinton supporters onto his team. On the other hand, he was hiring from a pool of DC attorneys that strongly tilted that way.
But none of his actual actions so far show any such bias. Of course he was going to indict Paul Manafort and his partner over egregious (but Trump-unrelated) sleaze, and pin down Mike Flynn, George Papadapoulos and so on.
But the public record shows no reason to think any of them has anything on the president: e.g., the campaign rejected Papadapoulos’ push for a Trump-Putin sitdown.
This still leaves the theoretical possibility of obstruction-of-justice charges. But that seems beyond dubious when there’s no underlying crime to cover for — and Trump 1) had every legal right to fire Jim Comey and 2) never tried to shut down or impede the investigation.
It looks like Mueller is close to wrapping up, since he’s moving to interview the president — and talking to the central figure is pretty much always the final step in such investigations. (Whether Trump should talk is another matter: His lawyers surely worry that his sloppy way of talking could land him in trouble when he’s otherwise already in the clear.)