Sen. Kamala Harris is finalizing plans to announce her entry into the 2020 presidential race around Martin Luther King Day, multiple outlets reported late Wednesday night citing sources close to the California Democrat.

Harris would be the fourth person so far to join the race for the Democratic nomination, though that number is expected to balloon to dozens of candidates by the time campaign season kicks into full swing.

Harris and her aides are still working out the final details of her announcement rally, including the date, which could be Martin Luther King Day, Jan. 21, CBS News reported.

Advisers to Harris do not want to link the senator too closely to San Francisco, but they still prefer the Bay Area to be the backdrop for her rally, per CBS’ reporting.

“San Francisco is viewed as a very nutty place by people outside of California, and frankly, by a lot of people inside California,” Democratic strategist Darry Sragow, who teaches political science at the University of Southern California, told CBS News.