it matters if the record shows a history of violence because that indicates a very impulsive and aggressive person, the kind who would start a war instead of looking for better ways of dealing with people

Yes. To the point of providing clues to the candidate's character, honesty, leadership, respect for others, fairness, and sense of priorities.

No. If he or she is the best person to run the country, they could be Henry VIII for all I care

JFK and Johnson were philanderers while in office , clinton made it a big deal

If they have not committed a crime, it doesn't matter at all. To me.

Honestly, it depends. IDGAF if a political leader has affairs or broken marriages or whatever. If a political leader has committed rape or other serious crimes that people may say are related to their personal life, well then we have a problem.

To a limited extent. A divorce isn't too big of a deal, cheating is a bit more. Being single isn't really a problem. The confounding thing is when they have problems like multiple divorces and adultery, and claim to be running on religious virtues.

Only if they think they are the Pope and preach what they don't practice. Then it's fair game. Otherwise no.

No. Private life is a private matter.

Nope thats their business

Not at all. It's between the spouses