Remember folks, Beet was sure, ignoring all polls and logic, that underfunded Lynch would win in that special election at the end of 2009, and he ended up losing to Deutsch by a 30% margin. I'm not saying this to be a jerk, but rather how this is getting a bit silly.
yes, upsets are always possible, hell, Andrew Cuomo could very well lose to Carl Paladino in NY, but when it becomes predictable in a systemic way (Democrat X will lose, no matter how terrible the GOP candidate is and how Democratic the district is!), it becomes cliche and silly
It's entirely reasonable to predict a tangible set of Democrats whom we presume to be safe will end up losing, and Coons could be part of that, but candidate quality, the district, and other factors need to be taken into account for the analysis, not just hysteria. The polling in this race speaks for itself, PPP, who correctly polled the O'Donnell surge, show that in the general election electorate, almost 50% of Republicans view O'Donnell as unfit for public office.