After noting the Trump campaign is trying to shift focus to investigating the investigators, Fox's Outnumbered does a full segment on just that

From the May 29 edition of Fox News' Outnumbered

Video file

LISA BOOTHE (CO-HOST): President Trump's 2020 campaign looking to turn the tables. Campaign Manager Brad Parscale putting out this statement in the past hour, reading, “Now it's time to turn to the origins of the Russia hoax and get to the bottom of why the Trump campaign was spied on by the Obama-era DOJ and FBI. Anyone who's for transparency, constitutional civil liberties, and the rule of law should want to know why human sources, wiretapping, and unmasking were used to infiltrate a presidential campaign.” This, as James Comey once again lashing out at President Trump in an op-ed, calling the president a liar. Comey writing, “You will find the work was done appropriately and focused only on discerning the truth of very serious allegations. There was no corruption. There was no treason. There was no attempted coup. Those are lies, and dumb lies at that. There were just good people trying to figure out what was true under unprecedented circumstances.”

... 

BOOTHE: Let's start with the Comey op-ed. Why would he write this op-ed? 

GUY BENSON (TOWNHALL): Because James Comey wants to hear himself talk and wants to see his byline in The Washington Post, and wants to defend what he feels is the institution that I actually believe he's undermining, with every utterance that he continues to make. But he is essentially laying early groundwork to contradict what may or may not come out from the inspector general and from the [John] Durham investigation that was commissioned by the attorney general. And, you know, Lisa, as you were reading through the comment from the Trump campaign manager on all of this, what I am struck by is on the question of impeachment, I think the actual salient question is whether public opinion moves significantly on the question of impeachment. Because I'm skeptical that it will. Because we've had this report and there is nothing new today that wasn't already in the report. And people -- the polls have shown -- are very bored of this issue, for the most part. If public opinion shifts toward impeachment, that might be a game changer. But there are going to be other very significant developments when it comes to shaping public opinion when the inspector general comes out with his findings. When Durham finds or doesn't find whatever he may, when it comes to the origins of the Russia investigation. So there are going to be signposts along the way between now and the election that will once again change the game, change the narrative, change the public discussion around this issue that I think to most Americans has been beaten into the dirt.  

...

BOOTHE: James Comey is essentially making the case: nothing to see here, we did everything by the book, these are just good people doing an investigation, doing their job. Well, how does he square that with the fact that he was the one that released his own memos, government memos, to spur a special counsel investigation? 

KATIE PAVLICH (CO-HOST): Well, if he's going to make the argument that everything was done by the book then, as many of the people who were part of this cabal at the beginning said, well, if you have nothing to hide, then why would you be worried about an investigation into how this happened? I find it very rich that James Comey accused President Trump in this op-ed of undermining our institutions, when that's exactly what has happened, not just at the FBI but across the spectrum in terms of the intelligence agencies. And I don't think that it's just purely political. I think there are very serious civil liberties concerns about the way that the FISA court was set up at the very beginning and how it's being used now against American citizens. 

BENSON: The dossier. The dossier, especially. 

BOOTHE: Melissa, you want to wrap this up for us?

MELISSA FRANCIS (CO-HOST): Along that point, I think that it was striking that Mueller said what really matters here is that Russia tried to interfere and everybody needs to focus on that. But then he didn't look at Fusion GPS. And he didn't look at [Christopher] Steele. And I think if we really want to see who interacted and helped the Russians or fell victim to them or however you want to say it, how can you leave out that piece? 

Previously

With the Mueller investigation over, conservative media declare it’s time to investigate the investigators

Here's how Fox News is spinning the Mueller report

The Mueller report didn’t address collusion, but that’s not stopping Fox News from screaming “no collusion”