On July 10, the Nebraska Secretary of State’s office said Jim Jenkins has enough valid signatures to be on the November ballot as an independent for U.S. Senate. He is the first independent candidate for U.S. Senate to be on the Nebraska ballot since 2002. Here is his web page.
The U.S. Senate race will be a three-candidate race. The only minor party on the Nebraska ballot is the Libertarian Party. Although there are four Libertarians running for statewide office, no Libertarian is running for U.S. Senate.