Why Bernie Sanders will, should and must stay in the race

Surprisingly, this week's prize for "Stupidest Political Comment in the Presidential Race" doesn't go to Donnie Trump or Ted Cruz. Rather, the honor goes to the clueless cognoscenti of conventional political wisdom. These pundits and professional campaign operatives have made a unilateral decision that Bernie Sanders must now quit the race for the Democratic nomination. Why? Because, they say: "He Can't Win."
Actually, he already has. Sanders' vivid populist vision, unabashed idealism, and