I suppose Obama could pardon her his last day in office.
Pardon her? For what? She hasn't been indited. I am supposing that the only she wasn't indited was so that Trump could indite her without the risk of Obama giving her a pardon. If there is no crime then there can be no pardon. You can't sell indulgences here. You have to have something to pardon before you can issue a pardon. The FBI director may have done something very wise.