Sen. Kamala Harris (D-Calif.), a 2020 Democratic candidate for the nomination, says she’s “really afraid” when she looks ahead in this country some 20 years and thinks of her “baby nieces, who are 1 1/2 and three years old,” she told a CNN town hall audience on Wednesday night.

“And when I look at those babies and I think about what the world will be like in 20 years if we don’t act, I’m really afraid,” she said.

“And as it relates to those Republicans in Congress where I’ve now been for two-and-a-half years, every one of those members [of Congress] need to look at the babies, the grandbabies in their life, and then look in the mirror, and ask themselves why have they failed to act. ‘Cause on the issue of this climate crisis … I strongly believe this is a fight against powerful interests. And leaders need to lead,” she said.

“So lead, follow, or get out the way — and get out the way starting with Donald Trump,” she declared, purposely dropping the “of” from the usual expression there — to applause from the studio audience.

“So, yeah, we need to work across the aisle,” she also said — giving absolutely no indication of how she would do that or what specific steps she would take.

Related: Green New Deal Gets Flashing Red Light in the Senate

“But … I kid you guys not … I was part of a committee hearing, during which the underlying premise of the hearing was to debate whether science should be the basis of public policy.  This on a matter that is about an existential threat to us as human beings.”

“And if they fail to act,” she also said, “as president of the United States, I am prepared to get rid of the filibuster to pass a Green New Deal.”

And people in the audience clapped and cheered.

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Here’s what she didn’t say: How in the world would she pay for that?

Even Rep. Alexandria Ocasio-Cortez (D-N.Y.) said the plan needs at least $10 trillion to “have a shot.”

So how would Harris pay for such a plan — which almost certainly would cost even far, far more than that (never mind the actual practicalities of rolling out such a plan)?

How would she make it happen?

Seems people will have to guess.

Watch the video here for her full remarks.

See these tweets — and share your thoughts.