CNN data reporter Harry Enten said on Thursday that Vice President Kamala Harris still falls short of polling marks President Joe Biden reached among key voting groups in his 2020 campaign. Harris reportedly secured the support of the necessary delegates to claim the Democratic nomination on Tuesday, two days after Biden endorsed her following his announcement he would not accept the Democratic nomination. Enten said Harris had made up some ground with black and Hispanic voters in surveys taken after Biden dropped out, but still lags behind Biden’s polling numbers from the 2020 election. Read:…