A “CNN News Central” panel on Wednesday warned that former President Donald Trump gaining black male support could harm Vice President Kamala Harris’ campaign.Trump secured the backing of 17% of black voters in a CBS poll published on Sunday, a significant increase from the 12% he received in a 2020 CNN exit poll and nearly identical to the support he got in a CBS poll released Aug. 4. CNN host Brianna Keilar and the network’s senior political commentators David Urban and Van Jones said it is a significant issue for Harris to lose black and Hispanic vo …