I have no problem with electing someone who has been divorced.
I am Russian Orthodox and we allow for divorce up to three times on the basis of humans being fallible creatures. Of course there are strict rules as to what constitutes an acceptable reason for a divorce but overall it is granted on a case by case basis and it is between the bishop and the couple seeking a divorce.
I have no problem with divorce per se insofar as a politician's qualifications even though I am RC. I voted for Reagan just fine.But he had a long and apparently untroubled 2nd marriage that settled questions about loyalty and such. Giuliani had a rancorous 2nd divorce and went about it in a way that makes him look vicious and petty. He announced his intention publicly before his wife had been apprised so she learned from the press. Character questions therefore loom large. Add that to the fact that he is a thoroughgoing leftist outside of his approach to crime and the man is unelectable as a Republican.