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 have held the governor’s mansion and state legislature since 1999, and occasionally debated whether to return to winner-take-all. Earlier this year, before the regular legislative session ended, conservative activists led by Turning Point Action urged the party to act, and Trump himself endorsed the idea.

Republicans are stepping up their efforts to change Nebraska's electoral vote process to winner-take-all -- a move that would benefit former President Donald Trump in an expected close November election in which a single vote could make a key difference in the Electoral College.