The last week before the Iowa caucuses offers Democrats a clear choice: Hillary Clinton is clearly the most qualified candidate to become president of the political system we now have. Bernie Sanders is clearly the most qualified candidate to create the political system we should have.
Which is why Hillary's closing message in Iowa is "we can't wait" for the changes Bernie wants -- emphasizing she's ready for the presidency now, as it is. And it's why Bernie's closing message is "it's time for a political revolution" -- arguing that nothing important can get done in Washington unless the we enlarge the parameters of what's possible. "Establishment politics," he says, can't solve the nation's problems.
Who's right? A piece of the answer will be revealed next week in Iowa. If Bernie wins --and brings into the caucuses a wave of first-time voters determined to change American politics – it's some evidence his "political revolution" is possible. If Hillary wins in Iowa, it's evidence fundamental change isn't likely, and we're keeping the current political system as it is.