We've talked a lot this year about relying too much on the polls in the Democratic race, as they've been all over the place at times.  With the Pennsylvania primary a week away, which poll do you believe?

Let's look at one poll that came out on Monday, which had Hillary Clinton suddenly up 20 points on Barack Obama. 

And let's look at another poll from Pennsylvania from one week ago, which had Clinton and Obama tied at 45-45.

The polls were done by the same firm, American Research Group. 

So what do we do with poll numbers that are 20 points apart, taken within one week of each other?

Frankly, I didn't believe the poll last week that had the race a dead-heat.  I'm not sure it's a 20 point lead for Clinton either, so let's just split the diff and say that Hillary is up 10.

Will the "bitter" comment make that even worse?  What about how all this plays out in Wednesday's debate?

With a week to go until the Pennsylvania Primary, I think it's clear that the "bitter" remark is going to live for a few more days at least.

And if the polls swing to Clinton, it will be blamed for the swing, ensuring that the comment by Obama to a group of fundraisers will keep getting the attention of the news media for a few more days and maybe into the weekend.

Back to the ARG poll, because there are a few good nuggets in there.

Clinton leads Obama 64-29 among white voters.

Obama leads Clinton 79-18 among blacks.

24% of likely Democratic voters say they could never vote for Obama in the primary.  One would assume that would mean they wouldn't vote for him in November either.  (10% say the same about Hillary.)

23% also say they have been so bombarded by ads from Obama that they are voting for Hillary.

Watch the poll averages as the week goes on and see where we are by Friday or Saturday.  By then we should have a good idea of whether the 'bitter' battle meant something or very little.

I'm not ready to rule one way or the other yet.