Will this reappraisal change the artist’s critical fortunes in America?

His huge struggles towards abstraction united as he never saw them

“I’m right and you’re wrong!” “No, I’m right and you’re wrong!”

Row over dubious drawings comes to US

Lothar Baumgarten at the Guggenheim

Some of his most prized works are now on show in the New York Guggenheim exhibition “The Great Utopia: the Russian and Soviet Avant-garde 1915-32”

The show will proceed to to the Guggenheim despite confusion arising from a lack of transparent communication between Russian and US committee members

The exhibition will travel through Europe, and in 1993 will be enlarged and shown at the Guggenheim to celebrate the artist's sixtieth birthday