Democratic super PAC pulls down ads in North Carolina as Roy Cooper dominates Senate race polling 

A super PAC linked to Senate Democratic leadership is pulling down ads this week in North Carolina, including about $500,000 in TV advertising and roughly $50,000 in digital advertising, amid polls showing Senate candidate Roy Cooper (D) with a healthy lead over Republican Michael Whatley, a source familiar confirmed to The Hill.  WinSenate, a super…