Life and the job market have established that I'm not worth a whole lot and I generally lack useful knowledge or skills, but I know a thing or two about polling – at least enough to recognize something funny going on. And the disconnect between the current dominant media narrative and some of the numbers we're seeing looks an awful lot like shenanigans.
First, looking at the generic Congressionals you'd hardly know that for the past year the media have breathlessly covered TEA PARTY!!11!! and the impending GOP revolution:
Hmm. Now, generics are among the least useful polls, mostly because of Fenno's Paradox – people disapprove of Congress but keep re-electing their own Congressman. More broadly, the phenomenon means that expressing generic preferences for a party doesn't tell us who these poll respondents will actually vote for in their own district. With 95% of incumbents being re-elected in recent years, it's more likely than not that a person's generic preference and actual vote are poorly correlated. Nonetheless, if there was some sort of "revolution" brewing, I have to imagine that we'd see slightly more favorable numbers for the GOP. We're five months out and they're losing to the generic Democrats.
Second, a lot of the numbers coming out of Rasmussen are supporting the theory that they are going the way of Zogby and making the purposeful transition from legitimate pollsters to GOP Propaganda Services. This year they have been the only agency – like, literally the only one – consistently showing Rubio in the lead in Florida. Even when other agencies were showing Crist winning a three-way matchup, Rasmussen had Rubio up 20. That makes absolutely no sense. Variance among polls is expected but not on the order of 20% unless one of the parties involved is seriously off the scent. Check this out (all Rasmussen):
5/3/10 500 LV
13 days later:
5/16/10 500 LV
And while that was happening:
So his favorables fell 6% as he was taking the lead away from Crist in the head-to-head (to head) matchup. I've been to two county fairs and a live Carrot Top show, and this is the dumbest thing I've ever seen.
The problem inherent to Rasmussen (and every other agency, to some degree) is their bizarre, proprietary "likely voter" model. You can basically make a poll result look however you want by carefully parsing the definition of a LV. Rasmussen's LV model was disastrously wrong in 2008, as it was structured around the assumption that only old, white Republicans actually show up. I'm willing to bet that they're doing something similar here. If the electorate is defined as geriatric teabaggers, Rubio's going to look pretty good. Maybe the gamble will pay off for Rasmussen – midterm turnout is unpredictable and their guess may be as good as any regarding who is actually going to show up for this thing. Maybe it will be nothing but teabaggers. Maybe it won't.
I remain 100% convinced that this will be a year of Republican gains, but the numbers trickling in as the election heats up are wildly inconsistent with a sweeping Republican victory. Anti-incumbency might be the closest thing to a theme this year (just ask Bob Bennett, Arlen Specter, or Blanche Lincoln). Whatever happens, the teabaggers will declare victory but their Glenn Beck approved candidates have done horribly thus far. Defeating Bennett in the Utah primary was probably the first victory they can claim, and even that was probably unrelated to his opponents' Teabag credentials.
As expected, we're starting to see a little bit of a pullback from the GOP high water mark after the Scott Brown MA special election victory, after which gasbags were predicting a GOP takeover of both chambers of Congress. Predictions are getting a little more muted and a number of Democratic Senate candidates are not quite as dead as previously claimed. They'd actually be in great shape if they could re-energize the base that came out in droves in 2008. The odds of that happening without a major legislative victory apart from a confusing, watered-down health care bill are quite slim.