Strom Thurmond?" and you would have found numerous articles explaining it...like the one attached from Greenville, SC...
....here is an excerpt from the attached article...
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The Strom Thurmond who left Congress, Biden said, was not the same man who entered it.
"By the time he resigned, he had the highest percentage of African-Americans working in his office of United States senator," Biden said. "He voted for the reauthorization of the Voting Rights Act. He had, in my view, I believe, changed."
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Bottom Line...like Sen. Byrd...to some degree...Sen. Thurmond changed and began to support Civil Rights...that is what Biden eulogized, when asked by Thurmond's wife to speak at his funeral...i.e. insinuating that Joe Biden has, or ever had, a scintilla of racism is patently false...and one more example of why Critical Thinking is so important.
Link: https://www.greenvilleonline.com/story/news/local/south-carolina/2018/08/30/joe-biden-john-mccain-eulogy-strom-thurmond/1133625002/