NICK’S POSTULATENick’s Postulate: Republicans talk like winners, even when they’re losing, while Democrats talk like losers, even when they’re winning.Here’s a prime example: the Dems roll Sotomayor’s nomination through committee, despite almost unanimous GOP opposition. But the winner is . . .http://www.chicagotribune.com/news/nationworld/la-na-sotomayor29-2009jul29,0,307160.storyReporting from