I used to live in Newt's district. It wasn't his "ethics violation" that made him leave. That never amounted to a hill of beans, especially compared to standard Democrat practices.
Newt didn't run again (in a safe Republican district) 'cause his personal life doesn't stand scrutiny. 'Bout the only differences morally between Newt and Bill Clinton is that Newt didn't rape anyone and that he divorced his wife to marry the intern.
One version of his story has the divorce papers being delivered to his wife just before an operation for cancer. Class act, that.
Newt isn't running. If he's the Republican candidate, get used to saying "President Hillary!".