Joe Biden’s top rivals for the Democratic presidential nomination are facing a stark notion: After a year of trying, they might not be able to dent his solid support among black voters. Black voters account for a significant bloc of the Democratic electorate in a swath of delegate-rich Southern states holding contests in March. Barack Obama in 2008 and Hillary Clinton in 2016 swept the deep South, leading to their delegate advantages and highlighting the significance of black support in national Democratic politics.

Source: Wall Street Journal January 20, 2020 16:52 UTC