Media.Link Communications political editor John Zammit has resigned but remains committed to the Nationalist Party, the PN said.
In a statement signed by Mr Zammit and secretary general Clyde Puli, the party said Mr Zammit had given notice two days ago "to seek pastures new".
However, he remained totally committed to the party which was the only alternative to a corrupt government which lacked any kind of plan, the statement said.