The problem with Gingrich in my opinion isn't his affairs but his track record of utter failure in dealing with Clinton in the 1990's. He was played like a violin. Since that time, policy expertise aside, he hasn't convinced me that age has brought wisdom and discipline that he lacked at that point.
he got Clinton to sign huge portions of the (R) agenda into law.
No $hit!! And if Lewinsky wouldn't have broke what Newt had convinced Clinton to give us in 98 would have made Clinton one of the more favorite presidents of the GOP and the left would ing hated the guy!
the GOP would still hate him, of course, as they feel they have a birthright to the White House since the time of Reagan or so. but, yes, if what you're alluding to is the partial privatization of Social Security.