The art world is blacklisting Russian oligarchs amid fears that the billionaires will take...

In London, the world's top auction houses canceled "Russian Art Week," the go-to art fair for wealthy Russian buyers.

In New York, Russian billionaire Vladimir Potanin resigned from the Guggenheim Museum's board of trustees.

In Moscow, artists are canceling their exhibits in Garage, the museum founded by Dasha Zhukova, a socialite art collector and ex-wife of sanctioned oligarch Roman Abramovich.