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Most of the money came from online donations, the report said, citing a Sanders campaign staffer.

Clinton’s campaign started the week targeting Sanders’ healthcare plan, saying it would require steep taxes on the middle class.

Clinton’s daughter Chelsea hit the campaign trail Tuesday accusing Sanders of wanting to “ dismantle ” ObamaCare and Medicare.

The former secretary of State’s campaign on Thursday accused Sanders of breaking his promise to not run any negative ads.

And on Saturday, reports emerged that a Clinton ally is planning a push to demand Sanders release his medical records publicly.