I have a hypothetical question that nobody seems to be asking. Suppose there is reason to believe that a political opponent has engaged in illegal or corrupt or unethical behavior. What then is a president supposed to do?

Do you not investigate because the potential perp is a political opponent? Or do you investigate vigorously and in so doing bring to bear all possible sources of information? Or do you conduct a half-hearted investigation in an attempt to avoid making waves? Or do you do something else, if so, what?

I am not asserting that either of the Bidens did anything illegal, unethical, or corrupt. That's why I am asking this as a hypothetical. As to whether or not there is adequate reason to believe that one or both Bidens may have engaged in illegal, corrupt, or unethical behavior, that is a different question.