(Click to enlarge the photo) From what Greg reports With some polls showing erosion in support for some Obama policies, Democrats tell me they’re going to ratchet up their attacks on the GOP’s historic unpopularity, in hopes that the media will take the focus off Obama’s numbers and start raising questions about the GOP’s credibility with the public. The core argument the Dems will be making, according to the memo, is this barbed line: To put it simply, the GOP’s take on Obama’s poll numbers is a lot like the owner of a 1987 Buick pointing out the dents and potential engine trouble of a 2008 BMW sedan. Top House Dem communications aide Doug Thornell emails another data point about the new WaPo poll, specifically that it shows “the public supports the President over Congressional Republicans on the most important issues, including the deficit, the economy, combating terrorism, and health care, by an average of 24 points.” Sometimes you can say "A new day" has come without loo...