> Why didn't that happen when Obama left office?

What illegal acts did Obama do, while POTUS, yet outside of his 'official duties', what would warrant prosecution?

Remember the context for this decision: Trump's participation in the events of January 6:

* https://en.wikipedia.org/wiki/January_6_United_States_Capito...

You know, the insurrection in which people have been found guilty of seditious action:

* https://en.wikipedia.org/wiki/Criminal_proceedings_in_the_Ja...

Were his January 6 actions part of his official duties?