Sen. Clinton campaigned in Iowa on Sunday.
WASHINGTON (CNN) - Sen. Hillary Clinton continues to dominate the race for the Democratic presidential nomination, but after coming under pointed attacks from rivals, her lead has shrunk from a month ago, according to a CNN/Opinion Research Corporation poll released Monday.
The New York Democrat is the top choice of 44 percent of the likely Democratic voters interviewed for the poll. Her closest rival, Sen. Barack Obama of Illinois, was the top choice of 25 percent, and former Sen. John Edwards of North Carolina has 14 percent.
All other Democratic candidates were in single digits. New Mexico Gov. Bill Richardson was was backed by 4 percent, Sen. Joe Biden of Delaware by 3 percent, Sen. Christopher Dodd by 2 percent, Ohio Rep. Dennis Kucinich by 2 percent and former Alaska Sen. Mike Gravel was at 1 percent.
The poll involved 467 interviews conducted on November 2-4 with Democrats or independents who lean Democratic. The poll's margin of error was plus or minus 4.5 percentage points.