Clinton 's strength is about where it was throughout the summer , indicating that she has lost the support she gained last month but that Obama has not yet cut into her core constituency , '' CNN political director Keating Holland said . Clinton 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 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 . View the poll results '' In an October CNN/Opinion Research poll , Clinton was supported by 51 percent of Democratic voters and had a
WASHINGTON -LRB- CNN -RRB- -- With the election of the next president a year away , Sen. Hillary Clinton remains the person to beat , a CNN/Opinion Research Corporation poll released Monday suggests . As the countdown begins to November 4 , 2008 , the New York Democrat continues to dominate the race for the Democratic presidential nomination , and comes out ahead when voters are asked whether they prefer her or the GOP front-runner , former New York Mayor Rudy Giuliani . But Clinton 's path to the White House is in no way certain . Clinton was criticized for her performance during a debate last week , and her rivals for the Democratic nomination have stepped up attacks that she has equivocated on her position on Iraq , Iran and other major issues . The Republican presidential candidates have also stepped up their attacks on the Democratic front-runner , with each suggesting that he has the best chance of stopping Clinton . The attacks may be working . The CNN/Opinion Research polls suggests that Clinton 's support has slipped from its height one month ago . Watch CNN 's Bill Schneider on the latest poll numbers '' ``