At a campaign event in Las Vegas, Nevada, President Biden mentioned that he met with all of the North Atlantic Treaty Organization (NATO) for a G7 meeting. The Group of Seven (G7) is a political and economic forum that includes Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States.
During his campaign speech, Biden says that Mitterrand from France spoke to him. The former President of France, François Mitterrand, was in office from May 1981 to May 1995. Mitterrand also passed away in January of 1996. Being that former President Mitterrand has been dead for the last 28 years, it is not possible that President Biden spoke to him.
The official White House website released a transcript of President Biden's campaign event. In this transcript, where Biden mentions Mitterrand, it is crossed out and replaced with Macron. "And Mitterrand [Macron], from Germany — I mean, from France looked at me and said." Emmanuel Macron is the current President of France.
With the fact that he initially said Mitterrand was from Germany, it seems as though Biden accidentally said Mitterrand's name.