Former North Carolina Gov. Roy Cooper (D) has a double-digit lead over his competitor, former Republican National Committee (RNC) Chair Michael Whatley, in his state’s Senate race, according to a new poll. In the AARP poll, released Monday, 53 percent of respondents said they would “definitely” or “probably” back Cooper or leaned toward doing so in the case the election happened that day, while 42 percent said the same of Whatley. One percent backed “someone else,” and 5 percent were unsure about their candidate of choice. The poll comes amid a problematic electoral environment for Republicans, with slumping approval ratings...