That awkward moment when NBC gets caught burying its own floundering Obama polls - "During the first half of 2006, there were 124 network news reports on Bush's approval rating, 2014 Obama,9." No bias at all.
Warren's image has seen some improvement in the last month. She has a +8 net favorability at 51/43, up 5 points from last month when she was at 46/43. That reverses the trend of her numbers falling in every poll we'd done this year up until now. Again the difference is Democrats becoming more enthusiastic about her. She's gone from a 75/16 spread with them last month now up to an 81/12 one.