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

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.

Nebraska Republicans are pushing for a crucial change to the way the state allocates its Electoral College votes, advocating for a winner-takes-all system to avoid any uncertainty ahead of the November contest.