Sen. Jim DeMint (R-S.C.) has a 37-point lead over Democratic rival Alvin Greene, according to a Rasmussen poll out Tuesday. 

The poll has DeMint ahead of Greene 58 percent to 21 percent among likely voters. Nine percent of respondents preferred someone else and 13 percent were undecided. 

For Greene, whose primary win stunned observers, the numbers are rough by every measure. Only 50 percent of Democrats polled said they support Greene, and his favorability numbers stand at 20 percent favorable versus 51 percent unfavorable.

Former state lawmaker Vic Rawl, who lost to Greene in the primary, has appealed to the state Democratic Party to review last Tuesday's results, and state Democratic Party Chairwoman Carol Fowler has asked Greene to step aside. The party is scheduled to meet Thursday to discuss their nominee.

The Rawl campaign said election experts who looked into the voting at the campaign's behest found irregularities in the results, and Democrats in the state are now pointing the finger at possible voting machine malfunction.

DeMint was not expected to lose his seat no matter who won the Democratic nomination.