Nobody likes a sore loser, and by adopting that role on Wednesday morning in charging that Sen. Ted Cruz "stole" Iowa, Donald Trump has effectively imploded his campaign. Yes, I know. Pundits have been saying for months that one Trump comment or another would sink him, only to be proven wrong. But here's why this is different. Every other time Trump said something controversial, or insulted an opponent, he was doing so from a position of strength. He looked like the alpha male toying with his pathetic oppnents. His whole brand is based on the idea that he's a "winner"...