Senate Majority Leader John Thune (R-SD) is drawing rare Democratic praise — and some GOP grumbling, too — over a new rule that has senators sprinting to the Senate floor to cast their votes.

Senators now have 30 minutes to make their way to the chamber, or else GOP leaders will close the vote and record them as “not present.” The rule is designed to keep stragglers from holding up the Senate when multiple votes are scheduled in a row, though it does not apply to any that might be close.