From a story on politico.com by David Cohen headlined “Former Trump Defense secretary brands him a security threat”:

Painting him as a security risk, former Defense Secretary Mark Esper on Sunday added his voice to those critical of former President Donald Trump for his handling of classified information after his presidency.

Esper, who served in Trump’s Cabinet, said: “People have described him as a hoarder when it comes to these type of documents. But clearly, it was unauthorized, illegal and dangerous.”