Senate Leadership is MUCH more strict than the House. Even without an exceptional tyrant like Reid at the head.
Most likely though, he’d only be required to vote for cloture anyway.
Many RINO’s have also enabled Reid with their cloture votes, as well.
Yep. I don’t really think it is worth the risk. Childers would probably remain reasonably moderate, but it would be a crap shoot. Remember that Reid himself was one of the more moderate Democrats in the U.S. Senate before he became majority leader. Now, he is as far left as Lizzie Warren.