American Research Group has the race at Obama/Clinton, 52/41. There has been virtually no change in these numbers since late March.

The details…

Obama leads among men 55% to 39% and he leads among women 50% to 43%.

Clinton leads among white voters 55% to 37% and Obama leads among African American voters 81% to 15%.

African Americans account for 34% of likely Democratic primary voters.

Obama leads 61% to 33% among likely primary voters under 50 and Clinton leads 50% to 43% among likely primary voters 50 and older.

More as it develops…

Politics Poll: Obama Up 11 In North Carolina