Democrat Richard Carmona (left) and Republican Rep. Jeff Flake shake hands before Thursday's debate in Chandler, Ariz. Ross Franklin/AP hide caption
Richard Carmona Richard Carmona
Democrat Richard Carmona (left) and Republican Rep. Jeff Flake shake hands before Thursday's debate in Chandler, Ariz. Ross Franklin/AP hide caption
Democrat Richard Carmona, who is running for the Senate from Arizona. Ross Franklin/ASSOCIATED PRESS hide caption