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.

And if Warren becomes the nominee, Obama has said they must throw the entirety of their support behind her.

The former president has stopped short of an endorsement of Warren in these conversations and has emphasized that he is not endorsing in the Democratic primary race.

But he also has vouched for her credentials, making it clear in these private sessions that he deems her a capable candidate and potential president, sources say.

“He’s asked all of the candidates who have sought his advice three questions: Is your family behind you? Why you? And why now? She checked the box for all,” said one longtime Obama ally.

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