Polls: Warren leads Sanders for second three times

DEMOCRATIC PRESIDENTIAL CANDIDATES 
As judged by Democratic voters. Most recent poll to right. Only candidates with at least 3% shown
Biden  35, 30, 26, 32, 26%
Warren 11, 10, 16, 15, 16% 
Sanders 19, 15, 12, 14, 12%
Buttigieg  7, 9,9, 5, 9%  
Harris 5, 7, 8, 7, 8, 7%
O'Rourke 5, 4, 2, 3, 3, 3%

NORTH CAROLINA MARGINS VS. TRUMP (JUN)
Most recent poll to right

-4, 5, 12. 3%   Biden 
12, 8, 1%        Sanders

4, -1%             Buttigieg
0, -2%             Warren 
-4%                 Clinton 2016

-10, -2, -2%     Harris

VIRGINIA DEMOCRATS (JUNE)
Most recent poll to right. Only candidates with at least 3% shown 
Biden 36% 
Sanders 17% 
Warren 12%
Buttigieg: 11%
Harris 7%
O;Rourke 3%