The Governor of California has command of the California National Guard under state authority, while the President of the United States commands it when federalized.
Who has command of the national guard in california

FactVerify
Source: factverify.com
Key Evidence
The California National Guard is under the command of the Governor of California and managed through the state's Military Department and Office of the Adjutant General.
latimes.comlatimes.com150 National Guard troops returned to California command; 'Trump caved,' Newsom...
When federalized for national missions or emergencies, command shifts to the President of the United States as Commander-in-Chief.
en.wikipedia.orgen.wikipedia.orgCalifornia National Guard
ngaus.orgngaus.orgCalifornia Guardsmen Federalized for Duty in Los Angeles
Recent examples include federalization during protests in Los Angeles where President Trump assumed command over deployed troops.
factcheck.orgfactcheck.orgQ&A on Federalizing the National Guard in Los Angeles
allgov.comallgov.comCalifornia National Guard
What the Evidence Shows
The claim concerns who commands the California National Guard. The command structure depends on whether the Guard is operating under state or federal authority. Under normal circumstances, the California National Guard is commanded by the Governor of California, who exercises state control over the Guard.
This is supported by multiple sources indicating that the California National Guard operates under the state's Military Department and that the Governor has authority over it.en.wikipedia.orgen.wikipedia.orgCalifornia National Guard
latimes.comlatimes.com150 National Guard troops returned to California command; 'Trump caved,' Newsom... The Office of the Adjutant General, currently led by Brigadier General David Kauffman as of May 2023, acts as a senior military official under the Governor's command.
latimes.comlatimes.com150 National Guard troops returned to California command; 'Trump caved,' Newsom...
However, when National Guard troops are federalized, activated for federal service, the President of the United States becomes their Commander-in-Chief.en.wikipedia.orgen.wikipedia.orgCalifornia National Guard
ngaus.orgngaus.orgCalifornia Guardsmen Federalized for Duty in Los Angeles
allgov.comallgov.comCalifornia National Guard This dual-command structure is standard for all state National Guards. Recent events involving federalization of California National Guard troops during protests in Los Angeles illustrate this shift in command from Governor Newsom to President Trump at that time.
factcheck.orgfactcheck.orgQ&A on Federalizing the National Guard in Los Angeles
ngaus.orgngaus.orgCalifornia Guardsmen Federalized for Duty in Los Angeles
allgov.comallgov.comCalifornia National Guard
Therefore, the claim that the Governor commands the California National Guard is true in a state context but incomplete without noting that federalization transfers command to the President. This nuance is important to avoid misunderstanding. The verdict is 'Mostly True' because while the Governor commands the Guard normally, ultimate command can shift to the President during federal activation.