Obama's lead over Clinton narrows: Reuters poll - Yahoo! News

Obama's poll numbers plummet

"The poll showed Obama had only a statistically insignificant lead of 47 percent to 44 percent over Clinton, down sharply from a 14 point edge he held over her in February when he was riding the tide of 10 straight victories."

Even more significant, he has dropped significantly versus McCain, dropping from +7 to -6 (from a 47-40 lead to a 46-40 deficit). The shift has been most pronounced among independents, where McCain led Obama for the first time, and not only led but held sway by a large margin, 46-36