[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/06/10/art.greene.scdp.jpg caption ="Greene will deliver his first public address Sunday."]Washington (CNN) – What will he say? How will he carry himself? Will he look like a credible candidate? Those are just some of the questions Democratic activists and political observers are asking ahead of Democrat Alvin Greene ‘s first major public speech as a Senate candidate.
On Sunday afternoon before an estimated crowd of 500 at a local junior high school in his hometown of Manning, Greene will talk about his campaign vision as he mounts his unlikely campaign against Republican incumbent Sen. Jim DeMint.
"I told them I would talk about jobs, education and justice,” said Greene, adding that those issues are at the core of his campaign.
Greene's victory in the June 8 primary shocked many political observers since Greene had not actively campaigned for the nomination, and he had no prior political experience.
Since then, his candidacy has only been met with more amazement, curiosity, and downright confusion.
First, how did the novice candidate actually capture the primary win last month against a seasoned state politician? Second, how did he as an unemployed veteran afford the $10,400 filing fee required to enter the campaign?
Greene has said the funds came from savings accumulated while serving in the military, an answer that has satisfied few state Democrats.
He has also been bombarded with interview requests since his victory and his performance during some of those sessions has called into question his fitness to be a Senate candidate.
"This is a serious campaign to get South Carolina and America back to work and to bring South Carolina and America back," Greene told CNN in an interview last month.
Questions also swirled amid revelations that he was charged with showing pornographic images to a University of South Carolina student last year.
In several interviews, including one with CNN, he has refused to talk about the incident. He has not entered a plea in that case and has previously told CNN he is innocent until proven guilty. At the time, he said he could not afford a lawyer - another move that prompted questions about where the funds for the filing fee came from.
After an investigation, the South Carolina Law Enforcement Division cleared Greene of any wrongdoing concerning that issue.
"SLED has concluded that there is no evidence of wrongdoing, criminal intent or deception to the court when Greene applied for a public defender last year," the agency said in a statement.
"During the course of the investigation, SLED determined that monies spent for Greene's filing fee were the candidate's personal funds and therefore no laws were violated in association with Greene's payment to the South Carolina Democratic Party," SLED also said.
Greene is thought to stand little chance in November against Sen. Jim DeMint, the incumbent Republican who has $3.5 million in his campaign account.