Massachusetts voters seem to be liking what they've seen of Elizabeth Warren as a candidate. The Democratic-leaning, but widely-cited, Public Policy Polling poll showed her leading Senator Scott Brown by a within the margin of error, razor-thin 46-44 percent among the state's voters. That's a big improvement over Boston's NPR news station's poll several weeks ago that found Warren trailing Brown by 9 points. And before that, in July, the Republican Senator's internal polling found him leading Warren by over 20 points