As we noted Monday, Brown's lead is despite over $18 million in outside spending aimed at defeating him -- which continues, with Crossroads GPS launching a new television ad targeting Brown today. The Washington Post poll of the Senate race was conducted Sept. 19-23. It surveyed 759 likely voters and has a margin of error of plus-or-minus 4.5 percentage points.
Poll: Brown Leads Mandel by Double Digits
Get us in your feed.