CEDAR RAPIDS, Iowa (CNN) - Iowa Gov. Chet Culver made a plea for honesty Monday at Lance Armstrong's two-day Livestrong Presidential Cancer Forum.
During an introductory speech welcoming several presidential candidates to Cedar Rapids, Culver said, "Because of our first-in-the-nation presidential caucus, we are accustomed to asking thoughtful and often very challenging questions. So a note to the candidates: we have come to expect honest, direct and straightforward answers."
The four Democrats who agreed to participate - Sen. Hillary Clinton, Sen. John Edwards, Gov. Bill Richardson, and Rep. Dennis Kucinich - will take the stage Monday at Armstrong's forum, which is focused solely on the issue of cancer. They will each have three minutes to make an opening statement, and then take questions from Lance Armstrong and Chris Matthews.
The only two Republicans to accept an invitation to speak on Tuesday are Senator Sam Brownback and former Arkansas Gov. Mike Huckabee.
- CNN Iowa Producer Chris Welch