Knowing they can't win in 2020 Democrats suffer incontinence of the mouth. Good reason to wear a protective mask in the presence of even a single liberal.
When the Democrats learned that Trump was on to them by asking Zelensky if he could look into the Biden thing, they went into Defcon 1 mode. They knee-jerked because they wanted to get rid of Trump, and in essence, Barr, before they found anything.
They painted themselves in a corner, and don't know how to get out. Durham turned his investigation criminal, which likely means he has something good. Depending on who that is, and what kind of potential prison sentence they could face, that will be the start of the dominos falling. Nobody wants to go to prison for somebody else. Given Trump's likelihood of being reelected, that wipes out any chance of getting their sentence commuted or pardoned.