Highest in history? Or just average? Did you miss post # 209 of this thread? I quote from it:
And when you look at "strongly approve" vs "strongly disapprove" he dropped 27 points in 100 days.
Firstfire, Rasmussen is the pollster of the far right. He was a columnist for a while for the far right website, WorldNetDaily. So naturally his polls are slanted towards far right, against Obama.
I have had this discussion with Yukon Jack before. Just before the election (where Obama won so convincingly), Rasmussen was showing the race to be a dead heat, with just 3 or 4 points separating the two (statistically insignificant margin).
Just a few days before, his one day polling (in three day tracking poll) showed him that McCain was ahead by 47% to 46%. He gleefully reported it on his website (even though one has to look at all the three days of the tracking poll, it is nonsense to look at just one day from the three day poll). He claimed that McCain is gaining momentum and that he will surpass Obama in the next few days.
There were celebrations on far right websites like Townhall, posters were giddy with excitement. Quite a few of them were quoting the Rasmussen poll.
So Rasmussen is an operative of the far right, his polls are totally unreliable.
CNN poll on the other hand, was spot on; they predicted that Obama will win by 7%. They also accurately predicted the margin in several battleground states such as Ohio, Florida, Virginia, Missouri etc.