The Vitter amendment, subject to a 60-vote threshold, would end the appointment of so-called presidential "czars," which haven't been subject to Senate approval. It would also prohibit funds for salaries and expenses for appointed czars.

The DeMint amendment, subject to a 60-vote threshold, would repeal the government's authority to provide loans to the International Monetary Fund and rescind related appropriated amounts.

The Coburn amendment, subject to a two-thirds majority threshold, would require the Congressional Research Service to report whether a bill creates a federal program that overlaps an existing one in its mission or activities.

Debate will end around 3 p.m., with Sens. Charles SchumerCharles SchumerSchumer: Ryan should replace Nunes on Intel chair Andrew Cuomo 2020? Democrats should say 'Fugetaboutit' Dems delay Senate panel vote on Supreme Court nominee MORE (D-N.Y.) and Lamar AlexanderLamar AlexanderOvernight Regulation: Trump's Labor nominee hints at updating overtime rule Trump's Labor pick signals support for overtime pay hike Live coverage: Day three of Supreme Court nominee hearing MORE (R-Tenn.), the chairman and ranking member of the Rules committee, making remarks at around 2:40 p.m.

As of 1 p.m. Wednesday, no vote had been scheduled. 

This post was updated at 1:02 p.m and 3:49 p.m.