Let's get down to brass tacks on any of those points though, as all of the usual right wing talking points are easily disabused as bullshit (e.g., Comey "leaking classified information", Comey corruptly making up his mind about Hillary before she sat down for her FBI interview, etc., etc.,). Comey has been very open about everything in his professional career, from battling Cheney's goons about torture and domestic spying in the Bush Administration, to why he felt the need to put the integrity of the DOJ over politics when he "knifed" Hillary in 2016, to why he went after Martha Stewart for lying about an insider trade which saved her about the amount of money that falls off her desk in about 30 minutes. Trump did some very weird shit in his interactions with Comey before Comey was fired, and he said some very weird shit after Comey was fired. And after Comey "leaked" his memos, what did Rosenstein (the man who had just written the justification for his firing) do? He didn't go after Comey for leaking classified information <45>he considered wearing a wire in his interactions with Trump, he pondered the 25th Amendment (and supposedly 2 members of Trump's cabinet were on board), and Comey actually heard from his FBI folks that Rosenstein wanted to know what Comey thought he should do before he, the Trump appointed, GOP senate confirmed, republican deputy attorney general, appointed Mueller.
In sum, Comey isn't concerned, don't let Barr's "spying" bullshit fool you (which he couldn't offer any evidence for and later walked back through anonymous sources), Barr is about as credible as Sean Spicer at this point, but at least Spicer could offer talking points without appearing to have a stroke in the middle of them.
“Um, did you say that I said that it occurred?” Barr had replied.
“I just want to make it clear, thinking back on all the different colloquies here, that I am not saying that improper surveillance occurred,” Barr offered at the close of the hearing. “I am saying I am concerned about it and looking into it, that’s all.”