From CNN Des Moines affiliate KCCI:
DES MOINES, Iowa - U.S. Sens. and Democratic presidential hopefuls Joe Biden and Christopher Dodd are longtime, respected members of the Senate. But the latest Des Moines Register poll showed them with single-digit support.
Biden and Dodd said they're not concerned about numbers.
"Anyone who can do well here in Iowa can go on. It's more important - not less important," Biden said.