Of course, the r-wingnuts focus on questioning the polls themselves, attempting to instill doubt in their accuracy, but we all know 1) such polls were 100% accurate anytime (and rarely) they had bad results for Clinton, and 2) if it were Clinton right now with such bad poll numbers, the right would be out of breath repeating it. The fact is 36%, 40%, 38%, whatever, such numbers are dreadful.
The other common refrain is, "oh yeah, well who won the election?" Gads, just moronic. I got news for you: I'm a Yankee fan and plenty of times over the last few years they won the World Series; that doesn't mean come the next season, when perhaps they were in fourth place in May, I barked at someone "oh yeah, but who won the World Series last year?" That was then, this is now, and whatever the Yankees did in that prior year is past history and means nothing now.
And why do you think GW's poll numbers are in fact in the toilet? By simple logic it's because a large number of folks who voted for him this past November have changed their mind. In theory these poll numbers could go lower, but the reality is they'll eventually plateau at some level because there exists a large contingent of citizens who would vote for GW no matter what he did. The "Madness of King George" could devolve into him running around naked on his Crawford ranch, shooting pistols in the air and stopping to urinate on a tree, and it wouldn't matter: X% of his diehard followers will show up to vote for him. Sad but true.