"I disagree. Resigning is a cut and run strategy. It makes a person appear guilty even if they are innocent. The manly (or womanly) thing to do is stand and fight."
But if he stayed on, how could the investigation be seen as fair?
"But if he stayed on, how could the investigation be seen as fair?"
Simple...that's why they use independent counsels and special prosecutors in the public sector to conduct the investigations.
Did Ronald Reagan resign during Iran-Contra? Did George H.W. Bush resign during the Savings and Loan scandal? Did Bill Clinton resign during Whitewater?