The CBS 5 poll, conducted by the research firm SurveyUSA, showed Fiorina edging Boxer 47 percent to 42 percent, compared to a CBS 5 poll one month ago showing Fiorina over Boxer 47 to 45 percent.
The poll results indicated Fiorina's support was essentially unchanged among men and women, young and old, white and Hispanic while Boxer had lost small ground among men, younger voters, and independents.
The poll also showed Fiorina tripling her lead in the Central Valley, from seven points one month ago to 21 points in this latest poll.
Meanwhile, the CBS 5 poll has gubernatorial candidates Whitman and Brown at 44 and 43 percent, respectively, effectively even within the poll's 4.1 percent error margin. Compared to a CBS 5 poll one month ago, Whitman is down two percent, while, Brown is up four percent.
Allahpundit wonders whether this is a tremor or The Big One. It certainly will cause some fear and loathing among those convinced Democrats will take a few minor losses this year. The poll is the first to show Fiorina with a lead in the race. In order to confirm a trend the results will need to be replicated in subsequent polling. Still there is little evidence at this point that the poll should be discounted, the sample seems on target with a 44D, 34R, and 23I split on party identification.
A few more seismic shifts in the Senate race ratings today. Maybe the Senate really is in play