The museum had faced two previous nighttime burglary attempts in the past eight months.
Rand has described the works as "tombstones for the unheralded." They were, he said, an attempt to paint something modern art had largely forgotten: love.
President Trump’s order comes only days after a Smithsonian museum leader faced two congressional hearings over alleged political bias.
French customs on the border with Switzerland donated an artwork by Marc Chagall to a nearby museum, which it had seized 20 years ago and then forgotten.
In a July 22 interview, Kozloff disclosed that she was a founding member of the famously masked feminist action group