Bernie Sanders has closed in on Hillary Clinton's lead in the race to win Iowa’s Democratic presidential caucuses, according to a new Des Moines Register/Bloomberg poll, NBC News reported.
The poll, released Thursday, shows the former secretary of state with the support of 42 percent of likely caucus-goers, while the Vermont senator inches behind with 40 percent. Former Maryland governor Martin O'Malley received just four percent support.
Clinton led Sanders by nine points in the same poll last month, 48 percent to 39 percent.
As the countdown to the caucuses continues, 40 percent of Democrats say they could be persuaded to change their minds about their first choice candidate.