In February of 2008, then Sen. Biden attended a state dinner in Afghanistan. During that dinner, Biden discussed the corruption in Afghanistan and the threat it posed in allowing the Taliban to gain support from the public. Karzai responded by giving his assurance that corruption was being brought under control. After about 45 minutes of listening to Karzai deny obvious reality, Biden put down his napkin, got up, declared "this dinner is over," and instructed his accompaniment to leave with him.
In the East, denying obvious reality is an endemic part of the honor-shame mentality. One of the more notable manifestations of this is various Palestinian officials declaring that they are descended from Canaanites/Jebusites/etc., that there never were any Jewish Temples in Jerusalem, or that the Jews have no history in the Land of Israel at all. Is there anyone who might ask now candidate Biden if Abbas, or any other Palestinian official, were to insist on any of the above, whether he would respond the way he responded to Karzai in 2008? If he answers unequivocally in the affirmative, it would provide some indication that he might end the coddle-coddle-coddle attitude towards the PNM and thereby have a positive impact for Israel.