LINCOLN, Neb. (AP) — A proposal to reinstate the winner-take-all system for Nebraska’s presidential electors has stalled in the Legislature.

Supporters on Tuesday fell two votes short of the support needed to overcome a filibuster by senators who opposed the bill. The 31-18 vote effectively kills it for the rest of the year.

Nebraska and Maine are the only states where it’s possible to split electoral votes between opposing presidential candidates, though other states have considered the practice. Two of Nebraska’s electoral votes are awarded to the statewide winner, while the remaining three are distributed by congressional district.

The state split its electoral votes for the first time in 2008, when Democrat Barack Obama captured one from the 2nd congressional district in Omaha on his way to the presidency.