Seventeen percent overall have no opinion in this poll, produced for ABC byLanger Reaearch Associates — and initial impressions can change. Views were similarly positive, 60-34%, when John McCain selected Sarah Palin for the 2008 Republican ticket. Opinions of Palin turned more negative as the campaign progressed.

Seventy-eight percent of Black people and 65% of Hispanics approve of Biden’s choice of Harris, compared with 46% of whites; these largely reflect partisan predispositions. Views are similar among women (56-29%) and men (52-30%). It’s 55-28% in the suburbs. And results are similar among all adults, registered voters and likely voters alike.

Apart from Republicans, disapproval of Harris’ selection is highest among conservatives (especially “very” conservatives), white evangelicals, rural residents and non college-educated white men, all core Trump support groups. Beyond Democrats and Black people, approval peaks among liberals, Northeasterners, those with postgraduate degrees and urban residents.