Indiana cities elect officers in partisan elections on November 3, 2015. In Anderson, the Republican Party county chair has filed a challenge to the Libertarian slate. The challenge says the Libertarian Party didn’t have a valid nominating convention. See this story.
The Libertarian Party in Indiana nominates all its candidates by convention. The state law says primaries are reserved for qualified parties that polled 10% in the last election for Secretary of State.
In 2004, Ralph Nader was nominated for President by the Reform Party in a national convention conducted by conference call. Nader’s ballot position as the Reform Party nominee in Florida was then challenged in state court on the grounds that a national convention must be an in-person meeting. But the State Supreme Court rejected the challenge and Nader appeared on the Florida ballot as the Reform Party nominee.