Nebraska's split-vote electoral system, which the Democrat-leaning Maine also uses, came into effect in 1991, with the state facing multiple attempts to repeal it since. The current proposal was introduced in 2023 by Senator Loren Lippincott.

Sen. Lindsey Graham said it's "very reasonable" for Nebraska to push for a change to its electoral vote system because the election could come down to a single electoral vote.

Too late for Maine Democrats to retaliate, Nebraska Republicans may implement a winner-take-all system, swiping an electoral vote from Harris.