On May 10, Nebraska held primaries for four parties: Republican, Democratic, Libertarian, and Legal Marijuana Now. Here is a link to the statewide primary returns. At least 1,824 voters chose a Libertarian primary ballot. At least 863 voters chose a Legal Marijuana Now primary ballot.
In 2018, when the Libertarian Party was the only qualified third party, 1,269 voters chose the Libertarian primary ballot.
Nebraska has partisan registration. The Democratic, Libertarian, and Legal Marijuana Now Parties let independents vote in their primary for all partisan office.