What evidence do we have or what can we get?
There is no evidence except "he said" or "she said."
Therefore, at this point in time, the only way to resolve the issue is to do so on the basis of character and reputation. If Mr. Cain has, overall, earned a reputation for being a man of high character and good conduct, then that is in his favor.
Likewise, her reputation for character and truthfulness will be a factor.
She said she booked herself a room at a hotel two blocks from the White House and when she checked in, it was upgraded to a suite by Cain.
1) Has the hotel been named?
2) Can the hotel check its records regarding occupiers as far back as 15 years ago?
3) WHEN did it happen? DATES PLEASE so that facts can be checked.
4) If we have all those info, can the hotel ve3rify the one important fact -— that Herman Cain himself UPGRADED the room to a suite?
These are all basic investigational questions one can immediately ask to ascertain the truth of the matter...