General Discussion

...must be covered.

Assume the Senate stays in session throughout, making for one legislative day, and you have 48 "filibusterers" that's 48 x12 hrs x 2 sessions each = 1152 hours or 48 calendar days.

I'm not positive, but I think if Thune recesses, when they come back, it is still the same legislative "day," but "debate" is suspended during the recess, so I think they would get a break.

If he adjourns, debate continues as "unfinished business" when they reconvene, Then it is the next legislate day, so they are back to having a full complement of available Senators.

So, we can probably assume Thune would just keep them in session until they run out of opponent Senators and steam.

There may be other tricks one side or the other can use.