The latest poll has Elizabeth Warren up two points over Scott Brown in the Massachusetts Senate race, which, while within the margin or error, is still a 17 point swing in her favor:

Elizabeth Warren has had an incredibly successful launch to her Senate campaign and actually leads Scott Brown now by a 46-44 margin, erasing what was a 15 point deficit the last time we polled the state in early June.

Warren’s gone from 38% name recognition to 62% over the last three months and she’s made a good first impression on pretty much everyone who’s developed an opinion about her during that period of time. What was a 21/17 favorability rating in June is now 40/22- in other words she’s increased the voters with a positive opinion of her by 19% while her negatives have risen only 5%.

I would note that the general rule of thumb is that undecideds break 2:1 to the challenger, so this is a pretty ugly picture for the distinguished gentleman from Massachusetts.

There are some important caveats here as well though.  Warren just announced, and so is likely experienced a bounce, and this is just one poll.

What’s more, Brown’s approval numbers are falling as well. (see chart pr0n)

My guess is that Massachusetts voters are beginning to understand that he is much more of a cog in the Republican party machine than he said while he was campaigning in the special election.