(CNN) On Monday, Hillary Clinton ruled out -- once and for all -- running for president for a third time in 2020.

"I'm not running, but I'm going to keep on working and speaking and standing up for what I believe," she told CNN affiliate News 12 in Westchester, New York . "I want to be sure that people understand I'm going to keep speaking out. I'm not going anywhere."

On Tuesday night, New York Times political reporter Maggie Haberman tweeted this:

"Spoke to someone close with Clinton in contact with her today. They say she wasn't trying to be emphatic and close the door on running when she spoke to a local reporter yesterday, and that she was surprised by how definitively it played. The person also says she is extremely unlikely to run, but that she remains bothered that she's expected to close the door on it when, say, John Kerry isn't. She has told her team she is waiting at least to see the Mueller report."

The question Clinton answered, by the way, was this: "I know you said you can't envision a scenario where you run again for a third time ... but can you tell me now standing here that you've 100% ruled it out?"

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