Donald Trump’s gains with Black voters have been wiped out since Kamal Harris became the likely Democratic nominee. Recent polling has suggested president Joe Biden was losing support among Black voters, who had been crucial to his 2020 election win, but new polling taken after he exited the race showed they overwhelmingly backed the vice president over the Republican nominee, reported Newsweek. “[The] swift shift in support for Trump to Harris among Black voters tells you something about how fickle Trump’s support was among these voters,” said Costas Panagopoulos, a political science professo…