Tonight , Democratic candidates will have their second debate . (CNN 7 PM ET) Two previously scheduled debates were canceled because of lack of interest and/or scheduling conflicts by the major candidates. Dennis Kucinich was understandably frustrated by this . In an interview, he said the following: " Whatever their excuses, some candidates are clearly trying to avoid any head-to-head public debate where they will have to answer tough questions -- questions about their votes in favor of the Iraq war, their votes in favor of trade policies that have wiped out millions of American jobs, their votes in favor of abridging Constitutional rights by approving the Patriot Act, and their collaboration with insurance companies and pharmaceutical corporations to deny Americans adequate health care protection. It's an insult to the voters, and the height of cynicism, for candidates to refuse to take the public stage and subject themselves to public scrutiny." The major candidates were surely troubled by the attention the Ohio congressman received following the first debate. Clinton , Obama and Edwards are also refusing to participate in the September debate hosted by Fox News, while Kucinich is ready for the challenge. Some burning questions ahead of tonight's debate will be... Will Kucinich and Gravel be able to set themselves apart from their centrist opponents? Will the CNN pundits allow for a constructive debate? How will the recent congressional war funding vote influence the debate? Whatever the case. it will surly be interesting. Frank Mill