April 15: Clinton 50 - Obama 44
April 8: Clinton 50 - Obama 44
April 2: Clinton 50 - Obama 41
March 18: Clinton 53 - Obama 41
It seems somewhat stable to me, Clinton can't put the big number up in Pennsylvania, and Obama can't catch her. There's a week to go, and short of any mind-numbing gaffes, the sort we haven't really seen in the past month (I don't care what people say about Tuzla or bitter, they aren't the kinds of mistakes that scare big numbers of supporters off), we're going to go into Election Day with the same kinds of numbers. I figure that 4% of the unknowns will go with Hillary, and 2% will go with Obama, leaving it at 54-46.
I suspect it's a sign that the candidates agree if they don't spend the entire next week in Pennsylvania.