And here’s that bounce…

“‘The Republicans had a very successful convention [sic] and, at least initially, the selection of Sarah Palin has made a big difference,’ says political scientist Larry Sabato of the University of Virginia. ‘He’s in a far better position than his people imagined he would be in at this point.’” As I noted over the weekend, you just can’t stop the post-convention bounce…Sad to say, some folks just like buyin’ whatever’s being sold, I guess. In any case, today’s Gallup polling has either McCain/Palin up 10 (USA Today/Gallup) (up 4 with registered voters) or up 3 (Daily Tracker). And, though this could be taken as good news if he maintains his recent record, Zogby also has McCain/Palin up 4.

Yikes. Still, I really wouldn’t worry about a little post-RNC turbulence just yet. Even before you factor in the huge problems with assessing “likely voters” this cycle, throw in the pollsters’ overreliance on landlines (and subsequent undercounting of Obama support), and look at the very favorable state-by-state breakdowns for us, these post-convention bumps are fickle creatures. Ask Presidents Dukakis, Gore, and Kerry. “[I]n an analysis of the impact of political conventions since 1960, Sabato concluded that post-convention polls signal the election’s outcome only about half the time. ‘You could flip a coin and be about as predictive,’ he says. ‘It is really surprising how quickly convention memories fade.’

So, don’t fret. We’ll sail through these choppy waters yet, folks. Update: Put another way… (Via MLR.)

Update 2: And, just like that, it’s gone.