Yet in the 1980s, during the dying days of the Cold War, Sanders indulged a fascination with far more disruptive and divisive strains of a socialist ideology he has embraced throughout his adult life.

Returning home from visits to some of the United States’ most avowed enemies, Sanders offered some criticism but also plenty of praise in Vermont community television recordings. Many of the videos were kept in storage for decades — including during his 2016 campaign — and, even after being posted online, have remained relatively unknown…

Smith recently tweeted a clip from a 1988 news conference in which Sanders lauds the Soviet Union for its chandelier-filled transit stations and its “palaces of culture.” Smith demanded an apology for what went unmentioned.

“He turned a blind eye to what was known about the ongoing systematic human rights abuses, the suppression of religious and ethnic minorities, the jailing of dissidents,” Smith said. “He was very clearly joining the ranks of the useful idiots who believed in the propaganda of the Soviet Union and carried it to the West.”