So much for Nevada being Rubio's "firewall"

There has been talk about Nevada being Rubio's firewall, with the campaign pouring resources into that state so that they could get an early caucus/primary victory.  Personally, I think it is an idiotic strategy because Nevada comes after Iowa, New Hampshire and South Carolina.  If he loses all three of those states, you really think anyone will care if he wins Nevada?  It won't exactly cause a wave of momentum for Rubio to suddenly do well in the SEC primary.  Regardless, according to Gravis this firewall strategy doesn't seem to be working: