La Mayor Eric Garcetti, often cited as a potential Dem candidate in 2020, has ruled out a run. Here is a list of where we stand:
Announced exploratory committee
Senator Elizabeth Warren
Senator Kirsten Gillibrand
Former Mayor Pete Buttigieg
Announced they are running
Senator Kamala Harris
Former Sec. Julian Castro
Rep. Tulsi Gabbard
Rep. John Delaney
Businessman Andrew Yang
Spiritual author Marianne Williamson
Awaiting decisions from (among others)
Former Vice President Joe Biden
Senator Bernie Sanders
Senator Cory Booker
Senator Amy Klobuchar
Senator Sherrod Brown
Former Mayor Michael Bloomberg
Former Attorney Gen. Eric Holder
Former Gov. John Hickenlooper
Gov. Jay Inslee
Sen. Michael Bennet
Sen. Jeff Merkley
Rep. Eric Swalwell
Former Gov. Terry McAuliffe
Former Sec. John Kerry
Former Sec. Hilary Clinton (there is some real chatter about this)