Stephanie Grisham said she saw Trump show classified documents to individuals at Mar-a-Lago.
"I watched him show documents to people at Mar-a-Lago on the dining room patio," she told MSNBC.
Last month, Trump was indicted on 37 federal counts over his handling of classified documents.
When Witt asked Grisham if it was believable that Trump was showing classified documents to individuals in private meetings, Grisham replied in the affirmative.
Last month, Grisham needled Trump over his handling of classified documents during a CNN interview.
Persons:
Stephanie Grisham, Trump, —, Donald Trump, Grisham, Melania Trump, MSNBC's Alex Witt, Witt, haven't, Grisham needled Trump
Organizations:
Trump, Mar, MSNBC, Service, White House, Republican, CNN
Locations:
Lago, Florida