>'untenable'?? Translation needed
Can't be supported. His position can't be held (defended).
No win for dems because they can't spin this in any positive way. They have to crush him, if he decides to stay on, as if he were a pub. That means they get ugly. Real ugly. Not good optics for party unity and image.
CNN chryon showun VA gov as an (R) is a good example. They have to choose a lesser of two evils approach on anything Northam. In this case, a fake news rap is worth the trouble they have to go through to jack Northam. Means more bad shit coming, probably.