I actually just looked it up. In certain states, this falls under the "Stand Your Ground" law.
Defense of Others: State law permits the use of force, including deadly force, to defend another person. Non-deadly force is justified when a person reasonably believes it is necessary to protect someone from imminent unlawful force. Deadly force is justified to prevent imminent death, great bodily harm, or a "forcible felony" to the other person. Examples of forcible felonies include murder, robbery, and aggravated assault.
Immunity from Prosecution: A key feature of the Stand Your Ground law is potential immunity from criminal prosecution and civil lawsuits if the use of force is found to be legally justified. A defendant can request a pretrial hearing to determine if their actions were justified, potentially leading to dismissal of the case. The prosecution must provide clear and convincing evidence that the force was not justified.
Important Considerations: The force used must be proportional to the threat. Stand Your Ground does not apply if the person was engaged in unlawful activity or provoked the attack. Immunity also generally does not apply when using force against a law enforcement officer performing their duties.
Meaning if you see a bunch of masked men trying to abduct someone and they aren't identifying themselves as law enforcement, you can legally shoot them to defend the person being assaulted. You would also be immune from criminal prosecution for doing so.
You'd better be a great shot though. And you'd probably get killed. At minimum for sure you're getting arrested (and probably disappeared). But you are legally in the clear. And the news would be ALL over it. I'd like the TACO administration compete against Republican-state laws.