(THE HILL) -- Sen. Elizabeth Warren has spent her presidential campaign railing against the donor class, making it known she doesn't want their help.
She has publicly bashed millionaires, has sworn off high-dollar fundraisers and has refused large checks from Democratic bundlers.
But behind the scenes in recent months, former President Obama has gone to bat for Warren (D-Mass.) when speaking to donors reluctant to support her given her knocks on Wall Street and the wealthy.
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