North Carolina is a state where pollsters tend to slightly overestimate Democrats as there is still some old Dixiecrat vote in some areas of the state, but it seems apparent that Tillis's approval isn't impressive and he'll be tied down to whatever Trump gets or even worse. But all these polls are kinda junky anyway.
True, but it's becoming pretty clear between Tillis' primary troubles and Collins holding onto >50% double digit margins that the Dem senate path is CO+AZ+NC+ win the GA open seat outright in November (if winning the presidential race) or get close enough to force runoffs in both GA seats and win them in January on differential base turnout (after a Trump reelection). This assumes AL is gone.