Well, then, Bob, what circumstances would justify the resignation of a president?
Heat gets too hot? Press gets too nasty?
When they jump in they have to know that things can get ugly. And all major candidates retain counsel to advise them about the legal ramifications. Right up front.
None. A President has infinite resources to deal with bogus charges, and as we’ve found with the Fraud, even truthful ones can be dismissed. A quitter does not travel to Wisconsin, and tongue-lash union thugs face-to-face in a major speech. This gal has balls, Sir! Bob