Would Coons be worse than Castle, about the same, or better than Castle on conservative issues?
No one knows for sure. They are both terrible on nearly everything. But there is one characteristic that, in my estimation, makes Coons at least potentially more restrained in his destructiveness than Castle: Accountability.
If Castle runs and wins, he will serve only four years, and everyone knows it. He will never face the voters again and is thus no more accountable to them than Elena Kagan. Coons’ worst instincts will be cabined (at least theoretically) by the fear of retribution at the polls. Castle will have no such restraints and will be free to trash the Constitution with impunity.