Macron names Jean Castex as new French Prime Minister, but who is he?

French President Emmanuel Macron has named Jean Castex the new Prime minister after the resignation of the Édouard Philippe cabinet. Rather unknown to the public, Castex came back to the public light early April when appointed to head the government strategy for the end of coronavirus lockdown measures, as FRANCE 24's Nadia Massih reports from the Élysée Palace.