A reader points to the above tweet:

Here's some more support for your theory that Romney could still lose this. PPP just started polling Minnesota (their caucus is on February 7th), and they find Newt up big. In Minnesota. If Romney can't count on a firewall of friendly states like Minnesota before Gingrich has even won a state, he might have a really great shot at losing this.

More on Mitt's troubled electability here, here, here, here and here. More perspective from a reader: