Republican Nebraska lawmaker who tanked push to change state's electoral votes speaks out

The Republican Nebraska lawmaker who effectively helped kill an eleventh-hour push to make the winner of the state receive all of the Electoral College votes on Election Day -- a move that would have likely benefited former President Donald Trump in a tight race with Vice President Kamala Harris -- told ABC News Prime Anchor Linsey Davis that effort "did not seem fair."

"I'm always willing to listen to people and try to find a compromise, but also try to understand why they're voting yes … But this just did not seem fair. If we're going to go ahead and change [the rules] in the state of Nebraska, I think we should do it mid-term. I think we should do it two years before the presidential election," Nebraska State Sen. Mike McDonnell told Davis on Tuesday of the timing around a potential law change.

The potential winner-take-all electoral change would have been pivotal if the Republican-leaning state then allocated all of its five electoral votes solely to Trump if he won statewide, instead of dividing them with Harris if she won in one of Nebraska's three congressional districts. Nebraska gives three Electoral College votes to the statewide winner and one to the winner of each congressional district.

Earlier this week, McDonnell, who was one of three state Republican holdouts that Gov. Jim Pillen needed to break an expected filibuster in a special legislative session, said he would not support the change before November. This announcement effectively killed the winner-take-all push.

Instead, McDonnell said he believed the legislature should take up the issue in next year's legislative session, which tentatively starts the first week of January 2025.

"We do listen, as Nebraskans, and sometimes people say, oh, 'Nebraska nice,' that means, you know, you're kind of weak -- and it's not. We work hard and we play by the rules and we're just asking everyone to come in, work hard in Omaha, the 2nd Congressional District, and play by the rules," McDonnell said Tuesday.

McDonnell mentioned that he had been opposed previously to "winner-take-all" in the state since he ran for legislature starting in 2016.

Pressed by Davis if anyone or anything could make him change his decision, McDonnell was resolute: "No. I've tried to listen and I always will listen. I think the rest of the country should follow us and look at the unicameral [Nebraska Legislature] and look at getting rid of the winner-take-all."

Nebraska Gov. Jim Pillen later released a statement Tuesday confirming he has "no plans" to call a special session before the November general election.

Trump on Monday thanked Pillen for attempting to "simplify the complexity" of the state's electoral map, while attacking McDonnell for opposing it, calling him a "Grandstander."

"Unfortunately, a Democrat turned Republican(?) State Senator named Mike McDonnell decided, for no reason whatsoever, to get in the way of a great Republican, common sense, victory. Just another 'Grandstander!'" Trump wrote in a social media post.

Meanwhile, Harris's running mate Minnesota Gov. Tim Walz, while speaking at a New York fundraiser on Monday night, celebrated McDonnell's decision, saying that the race would be close because the "Electoral College is the way it is," before stating, "Thank God for that one guy in Omaha" -- a reference to McDonnell.

Asked to respond to Trump's comments, McDonnell said, "Well, today's the first day I've talked to the media and I'm always willing to get, as I said, over the last eight years, serving in the legislature – willing to talk to people and listen."

And asked about Walz's comments and if Harris and Trump should make campaign stops in Omaha -- as well as if his own decision may have changed the outcome of the election -- McDonnell stayed away from making any predictions, but invited them both to Omaha.

"I'm inviting both Vice President Harris and President Trump. Come to Omaha. Come have a debate here! There's still 42 days. Listen to the people. Talk to the people and answer the questions."

McDonnell emphasized that most -- if not all -- of the feedback he had gotten about the issue had been civil.

"We know it's a very important issue. It's a passionate issue, and people are passionate about it … 90% of them have been professional and polite," McDonnell told Davis.

ABC News' Isabella Murray, Soorin Kim, Lalee Ibssa and Kelsey Walsh contributed to this report.