You're right, they did, in spite of whistlelock's ridiculous comment. The problem for old uncle Joe, is that way more of those serious Iowa voters preferred other candidates, even though he was generally considered the front runner. (and not just by FOX news)
Which is the entire basis for the question. After such a poor showing in Iowa, where the caucus going voters are serious, why should any Democrat primary voter believe that Joe has the message, the energy, the mental capability, the anything, to carry his candidacy to a victory for the Democrats in November?