First is that the White House apparently had no idea that there would be an enormous backlash:
“Instead, advisers were attacking each other for not realizing the gravity of the situation as events blew up. “How are you not defending your position for three solid hours on TV?” the White House aide said. Two White House officials said there was little communications strategy in handling the firing, and that staffers were given talking points late Tuesday for hastily arranged media appearances”
Second is that it appears to have been motivated by the Russia investigation:
“He had grown enraged by the Russia investigation, two advisers said, frustrated by his inability to control the mushrooming narrative around Russia. He repeatedly asked aides why the Russia investigation wouldn’t disappear and demanded they speak out for him. He would sometimes scream at television clips about the probe, one adviser said.”
“But several other people familiar with the events said Trump had talked about the firing for over a week, and the letters were written to give him rationale to fire Comey.”
Incompetence is the best possible defence here all things considered. No other explanation really works and “We didn’t think it would be a big deal” is likely as good as they’ll get. If they sacked him knowing the gravity of what they were doing it suggests that they were willing to take a hit to disrupt the investigation. Which is a lot worse.
This is fucking gas. O’SULLIVAN won’t go until the shredding machines have stopped and me bucko in the states get canned so they can bring in the shredding machines.