Jo No Mo
Some Democrats would like to kick him out of the Party or take away his committee assignments. Cooler heads, we may hope, will prevail. If he manages to win in Connecticut and the Democrats pick up five other seats, he will be the most popular and important guy in Washington. That is true to a lesser degree if the Democrats pick up three, four, or six seats. We may not like him, and we had better not trust him, but we can't afford to throw him out yet. Politics is still the art of the possible.
If he loses to Lamont, we can wave goodbye or just quietly forget him.