In case you missed it, it’s buried in this NBC/WSJ poll:

One of the survey’s more striking findings is the diminished standing of former President Bill Clinton, whom some have seen as campaigning too aggressively for his wife — and against Obama. More respondents in the poll view him in a negative light (45 percent) than in a positive one (42 percent). It’s a marked change from a year ago, when Clinton’s positive rating (48 percent) was higher than his negative score (35 percent). In particular, Clinton’s support among African Americans and Obama supporters has eroded.