Following any Leader remarks, the Senate will vote (expected by voice) on adoption of the motion to proceed to H.J.Res.88, disapproving the rule submitted by the Department of Labor relating to the definition of the term "Fiduciary". Under the rule, there will be up to 10 hours of debate equally divided prior to a vote on adoption of the joint resolution.
It's also possible that the Senate considers S.J.Res.28, a joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Secretary of Agriculture relating to inspection of fish of the order Siluriformes (catfish).
As a reminder, this evening Senator McConnell moved to proceed to Calendar #469, S.2943, the National Defense Authorization Act, and filed cloture on the motion.
Unless an agreement is reached, the cloture motion would ripen one hour after the Senate convenes on Wednesday, May 25.