Two new polls show that Barack Obama continues to maintain a double-digit lead over Hillary Clinton in the upcoming North Carolina Primary.

An American Research Group poll released today shows a 13 percentage point lead for Barack Obama among Democrats in North Carolina. He leads Hillary Rodham Clinton 51 percent to 38 percent, and has a solid margin among men, women and African-American voters. There is no appreciable difference in his lead among the 18-49 age group and the 50 and older group, getting 51 percent of support with each cohort in the latest statewide poll. Clinton still has an advantage among white voters, currently sitting at 49 percent support to Obama’s 37 percent. Twenty-two percent of respondents said that they would never vote for Obama in the state’s primary, and 30 percent of repsondents said the same about Clinton. Results are based on responses from a random sample of 600 likely Democratic primary voters in North Carolina. The poll was conducted March 29-30 and the margin of error is 4 percentage points.

In the latest Public Policy Polling survey conducted March 29-30, Obama leads 54 percent to 36 percent. PPP’s Dean Debnam noted that Obama runs strongly among voters who never have participated in a primary, leading among that group by 60 percent to 32 percent. The economy and jobs are cited as the most important issue by 48 percent of likely Democratic voters with Iraq second at 25 percent. Clinton has a 53 percent to 36 percent lead among white voters (57 percent of the sample) while Obama leads among black voters (36 percent of the sample) 81 percent to 11 percent.

The results of these polls track with an InsiderAdvantage poll released last week.