Hillary Rodham Clinton’s national lead over her rivals for the Democratic nomination has shrunk, and she is in a statistical tie with leading Republicans in head-to-head surveys, a new CNN/ORC poll released Thursday evening showed.
Mrs. Clinton is getting support from 37 percent of Democrats and Democratic-leaning voters, with Senator Bernie Sanders, the Vermont independent who is running in the Democratic contest, getting 27 percent, the survey found. Vice President Joseph R. Biden Jr., who is considering a run of his own and who has been included in several recent public surveys, received 20 percent support.
Martin O’Malley, the former Maryland governor, is at 3 percent, while Jim Webb, the former Virginia senator, received 2 percent, and Lincoln Chafee, the former governor of Rhode Island, is at less than 1 percent.