Where I actually make a prediction:

So, one of the biggest political issues as of late is the Massachusetts special election, which has taken an unexpected turn, in that Massachusetts seems to actually have a chance of electing a Republican senator.
Trying to do a qualitative analysis of what is going on in Massachusetts would probably take us into some pretty murky territory, but luckily we can look at numbers.
I charted Obama's margin in 2008 versus Kennedy's margin in 2006, and came up with this:What this shows us is that the Democratic margins in two different races (and for that matter, I could have used any two races) correlate very strongly. Kennedy and Obama both got big margins, with Kennedy getting uniformly bigger margins, although the spread was different in different counties.
So the prediction I am going to make is that whatever the result of Tuesday's election, the plot will look a lot like this (and I will have one ready pretty soon after the election to see if I am telling the truth). Whatever the numbers turn out to be, they will correlate pretty well with either of the two numbers used here.
If there is some skewing of this diagram, it will probably be that the upper left 5 counties, which includes the city of Boston, will probably stay more stubbornly liberal than the counties between Plymouth and Nantucket.
I guess only time will tell!