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Democratic presidential candidate Joe Biden declined to answer questions on the campaign trail this week about his son's overseas business dealings in countries where the then-vice president was conducting diplomatic work, an issue his political opponents have already begun to wield against him as he wades into the 2020 presidential campaign. ... renewed questions about a pair of overseas business opportunities involving Hunter Biden – one in Ukraine, another in China – that already have begun to generate political attacks from Joe Biden's conservative critics. Ethics experts interviewed by ABC News said these are legitimate questions about possible past and future conflicts of interest.

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Biden’s controversy over his comments on working with segregationists could threaten his position with black voters
No one ever accused former vice president Joe Biden of being the most conscious of the Democratic candidates when it comes to understanding the long-term harm and historical implications of systemic racism.
At a Tuesday fundraiser in New York City, Biden spoke about the importance of “bringing people together” while discussing his ability to work well with late senators James Eastland (Miss.) and Herman Talmadge (Ga.), two Democrats who were staunchly opposed to civil rights and racial integration.
And Sen. Kamala D. Harris (D.-Cal.), the only black woman running for president, pointed out that the politicians that Biden highlighted for their civility were quite uncivil when it came to the concerns of their black constituents....

“Let’s be very clear that the senators that he is speaking of with such adoration are individuals that made and built their reputations on segregation,” she said. “The Ku Klux Klan celebrated the election of one of them.”