It doesn't work that way, kid. It's just baggage and mud.
Pick someone who has neither. That's how Abraham Lincoln won. That's how President Bush won (and the baggage/mud that turned up in the final week of his 2000 campaign almost sunk him).
And that also helped President Reagan win.
You don't want Watergate baggage. Why spend hours explaining to people that Nixon had no motive for bugging Democrats in the Watergate hotel 3 months before his election landslide (when he was already at the top of the polls)?!
That sort of thing gets in the way of your message and puts you on the defensive from Moment One.
Bad strategy.
It's not baggage, it's a compelling reason for someone concerned about ethics to vote for him. It would be virtually impossible to find a way to blame Romney for any of that corruption, while it's not hard to make the case he cleaned it up.