Clinton targets pledged delegates

(The Politico) - Hillary Clinton’s presidential campaign intends to go after delegates whom Barack Obama has already won in the caucuses and primaries if she needs them to win the nomination.

This strategy was confirmed to me by a high-ranking Clinton official on Monday. And I am not talking about superdelegates, those 795 party big shots who are not pledged to anybody. I am talking about getting pledged delegates to switch sides.

What? Isn’t that impossible? A pledged delegate is pledged to a particular candidate and cannot switch, right?

Wrong.