New Hampshire permits fusion, but it is very difficult for anyone to obtain the nominations of two parties. A candidate can only win the nomination of the party he or she is not a member of, via write-ins in that party’s primary.
At the September 13, 2022 New Hampshire primary, Nicholas Sarwark, who had already qualified by petition as the Libertarian Party’s nominee for Hillsborough County Attorney, also won the Democratic nomination via write-in votes. No candidate was listed for that office on the Democratic primary ballot. Sarwark received 1,023 write-ins in the Democratic primary. His only opponent, Republican incumbent John Coughlin, received 98 votes in that primary. So on the November ballot, Sarwark will be listed as the nominee of the Libertarian and Democratic Parties.
Hillsborough is the most populous county in New Hampshire. Thanks to Andy Craig for this news. Sarwark is a former national chair of the Libertarian Party. He also ran for Hillsborough County Attorney as a Libertarian in 2020. That time, he received 11,982 votes; the Republican received 105,491 votes; the Democrat received 95,948 votes.