[bdhess]

But that gets back to my original point about cell phones and airplanes. If the modern age, if there were an item that Senate leadership deemed sufficiently important, they could call the Senate back from non-recess recess and get their quorum in a matter of days.

Edit: it's also worth noting that serving in the Senate was originally a part-time occupation; recesses of several months were common until the 1930s. That's a very different case than in 2016, where the longest break was five weeks.