While going through my feeds a few minutes ago I noticed something interesting in the MSNBC Politics feed. The summary of the biweekly MSNBC/National Journal Democratic Presidential Rankings read as follows (emphasis mine):
This is the scrutiny quarter as far as the primary is concerned, and no one will face harsher glares than Hillary Rodham Clinton. (By the way, we're not going to rank Dennis Kucinich or Mike Gravel anymore.
On the story itself that last bit in parentheses has been removed but they still don't rank them.
So now I'd like to ask you all a question: when is it time to start narrowing down the candidates? What criteria should a candidate have to meet to be considered viable?