Her book "The Truths We Hold: An American Journey" hit the book stores on Wednesday.
Harris has not given any strong indications that she is eyeing a 2020 run, recently telling the media that she would make a decision soon but not elaborating any further.
"I might", the laughing former attorney general of California teased host Stephen Colbert.
But several sources with knowledge of her plans said she has in fact chose to run, with the enthusiastic blessing of her husband and two stepchildren.More news: Matt Kuchar takes one-shot lead over Andrew Putnam at Sony Open
Harris was born in Oakland and began her public career as a two-term district attorney there.
"San Francisco is viewed as a very nutty place by people outside of California, and frankly, by a lot of people inside California", Sragow said.
What her book doesn't address, however, is the many times her own office contributed to that dark history.
Harris isn't likely to follow the book tour with the creation of a presidential exploratory committee, according to three people familiar with Harris' thinking. "She knows that this is something that's heading her way and a good candidate is one who doesn't wait for it to hit them".
Sen. Kamala Harris (D-Calif.) speaks to reporters in Washington, D.C., on December 4, 2018.More news: Four foreign tourists among seven dead in Cuban road accident
Berkeley, where Harris was raised before her parents divorced and she moved with her mother and sister to Montreal, Canada, has also been dismissed by her strategists as not projecting the image they're looking for.
"When the conversation shifts, one should be expected to be questioned about those choices", Chatfield said, noting among other issues Harris's advocacy for tougher truancy laws.
There is a long, and growing, list of Democrats planning to take on and stop President Donald Trump in 2020.
The debate within her camp has been how, and where, to launch her campaign. She also spent heavily to build out her digital campaign infrastructure and cultivate supporters online.
"Apparently you said you were going to make a decision after the holidays as to whether you were going to run for president", Goldberg said. And the need for such defense has never been greater than right now, with the Trump administration and GOP leaders-including Kevin McCarthy-declaring war on our state.More news: Man who killed officer said he was hit by ultrasonic waves
"I think she is introducing bold ideas that should be discussed".