The then-deputy head of the International Department of the CPSU Central Committee (the organization formerly known as the Comintern) wrote a report about a meeting with Joe Biden and Richard Lugar. The official noted that the senators had passed along some letters from refuseniks (that is, Soviet Jews who were refused permission to leave the USSR for Israel on a variety of trumped-up pretexts). The Comintern official then stated flatly in the report:
[T]hey absolutely do not care for the fate of most so-called dissidents.
In contrast, President Reagan did care about the refuseniks -- a lot -- and made their plight an issue during his 1988 trip to the USSR.
Just one more Obama-Biden story the MSM conveniently overlooks.