*** Biden traveled to Charleston where he appeared at the historic Mother Emanuel AME Church, as he tries to shore up his 2024 support with black voters. While at one point, he was interrupted by pro-Palestinian protesters shouting 'ceasefire now,' he was also awarded with cheers when he called Trump a 'loser' and chants of 'four more years.' 'So let me be clear for those who don't seem to know: Slavery was the cause of the Civil War,' Biden said, earning applause. 'There was no negotiation about that.' Last month, Haley - the former governor of South Carolina - stepped...