Some quotes from that article should give the GOP pause:
I wonder whether a significant number of Republicans thought that working with them would entail adopting their ideas wholesale.
You’re exactly right. For example, here’s a run-down of how they performed in predicting the 2008 presidential election results: http://tpmelectioncentral.talkingpointsmemo.com/2008/11/grading_the_national_polls_ras.php
Gallup was dead last - they predicted Obama would win by 11 points. Daily Kos’ (actually called Research 2000), predicted a 51-46 Obama win.
This of course only further illustrates the foolishness of describing trends by crossing over different polling company results.