The biggest reason I was never able to share Jack Hunter's enthusiasm for Governor Sanford has been his poor legislative history on immigration (from a restrictionist's point of view)--Americans for Better Immigration, an outfit of NumbersUSA that issues grade cards for House and Senate members, assigns him an underwhelming 'D+' for his six years as a Congressional representative out of South Carolina. Nationwide, Republicans average a 'B', Democrats a 'D'.
Since his pillorying, it has been revealed that he has known his mistress for eight years, and it is not implausible to assume that he may have had other "exotic" Latin American love interests in the past. Might a personal affection for Latina women influence his position on immigration into the US? Perhaps one of those previous hookups is an ardent supporter of open migration for Latin Americans wanting to head northward?
Speculating on personal motivations of people I know little about does not mesh with the spirit of empirical inquiry I strive to stick to, but it does serve as a thought experiment in how immoral actions can conceivably force stewards into compromising their fidelity to those for whom they are putatively acting in the best interests of.