No, you're wrong. No law from Congress can supersede the Constitution and Obama is not criminally liable because of the Constitution, not because of the law you state. You can't create a law that deprives an individual of his constitutional rights.
However, presidential immunity did give Obama the ability to launch a drone strike against him in the name of national security. He could basically execute the individual and was protected because of his presidential immunity.
Immunity is implied by the Constitution because of separation of powers, and it's been a long-held policy that the president has immunity so that he can do his duties without fear of criminal or civil prosecution, and this is a perfect example of this.
The only thing SCOTUS did was make it clear that the President does have immunity when conducting official acts. This was something that was long-held policy but never officially declared until last year.
However, presidential immunity did give Obama the ability to launch a drone strike against him in the name of national security. He could basically execute the individual and was protected because of his presidential immunity.
Immunity is implied by the Constitution because of separation of powers, and it's been a long-held policy that the president has immunity so that he can do his duties without fear of criminal or civil prosecution, and this is a perfect example of this.
The only thing SCOTUS did was make it clear that the President does have immunity when conducting official acts. This was something that was long-held policy but never officially declared until last year.