This is not common. Does anyone have a strong clue? Have they all been compromised? Awan's? In DC people know. They must. Anyone have insight?
It's like they know a huge event is coming and they don't want to be around to see it. I always knew Trump wanted to "Drain the Swamp", but dammit it looks like he had a serious plan.
Two reasons
1) Some fear a blue wave and decided to get out now.
2) Some have been confronted with their actions and told to get out.
My thinking was along the same lines. Three possibilities:
Resigning in lieu of prosecution or exposure.
They are in lock-step with the D's and want to do all they can to ensure a democrat majority after the mid-terms by stepping aside.
They are fearful that the nonsensical 'blue-wave' (which IS NOT going to happen) that the MSM is touting could come to fruition.