Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE chastised Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE for soliciting Republican donors for her presidential campaign, saying those tactics would turn off his supporters.

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“Those are the kinds of things that make not only my supporters, but millions of Americans, nervous,” Sanders said Friday on PBS “NewsHour.”

Sanders was referring to a Thursday Politico report that claimed Clinton’s supporters have targeted Bush family donors for funding, trying to convince them she represents their values better than presumptive GOP nominee Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE.

“By the way, as I understand it, [Clinton] is now reaching out to Jeb Bush’s fundraisers in order to raise money from them, and that really casts a doubt on the parts of millions of Americans,” said Sanders, who currently trails Clinton in the race for the Democratic presidential nomination.

“Are you really going to stand up for the middle and working class when you’re collecting millions from Jeb Bush supporters?”

Clinton and the Democratic Party have in recent days expanded their outreach to Republicans who might be reluctant to support a Trump presidency.