Enter Vice President Joe Biden. If any of you saw him on the "Late Show With Stephen Colbert" Thursday night, you probably know what I mean. Biden didn't talk politics or tell us how he was going to fix immigration, health care or the economy. Actually, it was the opposite. Biden, who hasn't announced his candidacy, spoke candidly about how he wasn't sure he was up to being president. The recent loss of his son, Beau, Biden said, choking back the emotion, made him uncertain at the moment that he could give 100 percent of his attention to the job, though he was careful not to rule it out. Biden went on to tell stories of his family and his religious beliefs, and showed a humility that we could never accuse a Trump or a Clinton of having.