Ted Cruz has pinned his hopes on a big showing in the South. He could still do it, but it's far from certain It's taken a while for the chattering classes to come around to the idea that Donald Trump may actually pull this thing off. It's hard to blame them. It's as if we all went to sleep one night and woke up in an alternate universe. But they do seem to have accepted it. He came close to winning Iowa, a notoriously buttoned up electorate, and won decisively in New Hampshire. All the polling going forward looks good....