Not only has he done nothing
Biden started off opposing federally mandated desegregation busing ...
https://www.nytimes.com/2019/07/15/us/politics/biden-busing.html
The funny thing is that a certain Kamala Harris once criticised him for doing so...
He then made the suggestion in 1977 that he didnt want his children to grow up on a "racial jungle"...
https://www.businessinsider.com/biden-said-desegregation-would-create-a-racial-jungle-2019-7
Kamala harris also criticised biden over the sexual harassment claims.
Biden is hardly the moral and progressive crusader...and his current running mate is hypocritical for agreeing to be his VP after opposing him on these things...
All these politicians are polii4ical animals with no fixed principle. Trump just let's it all hang out but these democrats are no better inside and possibly worse...