Mr John Edwards, will be the first member of the Democratic election ticket to address the party's convention when he accepts his party's vice presidential nomination tonight.
Mr Edwards will address the convention, a day before the man who nominated him, Mr John Kerry appears to accept the presidential nomination.
The 51-year-old North Carolina trial attorney turned senator said he wanted the convention to "see who I am and what I believe, and why I believe John Kerry should be president".
"I'll talk some about Senator Kerry ... I will talk some about my own background, and then lay out some specific ideas to support our vision for the country," he told reporters on a flight aboard his campaign plane from his hometown of Raleigh.
With polls showing voters fed up with political attacks, the Kerry-Edwards campaign has sought to have a feel-good convention. Asked about the tone of his address, Mr Edwards said, "I think anybody who listens to this speech will think it is positive."
The charismatic and passionate orator is expected to touch upon a theme of his own presidential campaign earlier this year, one in which he talked about "two Americas," one for the rich the other for the poor, and the need for a united country that serves all.
Democrats hope Mr Edwards will help them to attract votes in the South, which has been a Republican stronghold for presidential contenders in recent decades. He is also seen as an antidote to the more measured tone and delivery of Mr Kerry.
Scores of supporters turned out on Tuesday at the Raleigh-Durham International Airport to wish Mr Edwards well at the convention and the campaign ahead.
"Go John, Go," read one sign. "North Carolina for Edwards," declared another.
Before Mr Edwards and his wife left North Carolina they visited a cemetery where their teenage son, Wade, is buried. He was killed in a car crash a decade ago.
Upon their arrival in Boston, the couple was joined by their three other children.