Rasmussen (9/30, likely voters, 8/21 in parens):
Ronnie Musgrove (D): 47 (43)
Roger Wicker (R-inc): 49 (53)
(MoE: ±4.5%)
In the previous Rasmussen poll of this race, Wicker had jumped up to 17% among African-Americans — today, the Republican is at a mere 2% (that’s probably a bit ridiculously low, just as 17% was probably overstating his support). Musgrove is at 21% among white voters; he may need to bump that up closer to 24 or 25% in order to seal the deal here, depending on the black turnout.
Note the favorable/unfavorable numbers for both candidates: Wicker is seemingly in stronger shape at 59-36, while Musgrove is a bit more banged up at 51-44. Yet the race is as tight as ever in this poll.