It's desperate, it's risky, and it's an eleventh hour guilt-by-association Hail Mary, but panicked Democrats are hoping that a video showing an off-color remark at a political rally yesterday will derail a looming Republican Senate win in Massachusetts. Yesterday some yahoo at a rally for Republican Scott Brown yelled, "Shove a curling iron up her butt!" The comment was a reference to Brown's opponent, Attorney General Martha Coakley, who was criticized for not aggressively pursuing a child rape case in 2005. In the video below, Brown does not say anything in response to the remark, but he appears to smile in response! It's not quite a Macaca moment, but for Democrats, it'll have to do.

"He emphatically said he did not hear it,"

a campaign staffer tells the Daily News. "There was a large crowd." Recent polls show Coakley trailing Brown in the special election being held tomorrow for the late Ted Kennedy's Senate seat. Yesterday, President Obama stumped in Boston on Coakley's behalf, and had his share of audience participation, too; an anti-abortion heckler was removed from the audience (video) during one event at Northeastern University. Meanwhile, multiple advisers to President Obama have privately told party officials that they believe Coakley is going to lose.