The Eisenhower Presidential Library’s director has exited his position after advocating against giving a sword from the collection to King Charles as a gift during Donald Trump’s recent state visit, according to US media reports on Thursday.

Todd Arrington left his post on Monday after being told to “resign or be fired”, he told CBS News, which did not specify who had relayed the message to the historian.

The library and museum – located in former US president Dwight D Eisenhower’s home town in Abilene, Kansas – is part of the National Archives and Records Administration (Nara).